Essec\Faculty\Model\Profile {#2233
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"bid" => "B00683001"
"academId" => "1989"
"slug" => "ramos-sofia"
"fullName" => "Sofia RAMOS"
"lastName" => "RAMOS"
"firstName" => "Sofia"
"title" => array:2 [
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"email" => "ramos@essec.edu"
"status" => "ACTIF"
"campus" => "Campus de Cergy"
"departments" => []
"phone" => "+33 (0)1 34 43 28 54"
"sites" => []
"facNumber" => "1989"
"externalCvUrl" => "https://faculty.essec.edu/cv/ramos-sofia/pdf"
"googleScholarUrl" => "https://scholar.google.com/citations?user=bW3fYF8AAAAJ"
"facOrcId" => "https://orcid.org/0000-0001-6089-573X"
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0 => Essec\Faculty\Model\CareerItem {#2251
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"en" => "Co Chaired Professor Shaping the Future of Finance"
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"diplomes" => array:2 [
0 => Essec\Faculty\Model\Diplome {#2235
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"diplome" => "DIPLOMA"
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"institution" => array:2 [
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1 => Essec\Faculty\Model\Diplome {#2237
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"label" => array:2 [
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"country" => array:2 [
"fr" => "Espagne"
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]
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"bio" => array:2 [
"fr" => """
<p>Sofia Ramos est Professeure Associée de Finance au ESSEC Business School (Paris-Singapore). Elle enseigne Financial Management, Corporate Finance, ESG Investing, Portfolio Management et International finance courses en masters et programmes exécutives. Elle a écrit des études des cas pour des cours.</p>\n
\n
<p>Elle est Associate editor du European Journal of Finance. Ses intérêts de recherche sont dans le domaine des fonds d’investissement, de la gestion de portefeuille, de l’investissement responsable, de la finance d’energie et de la finance internationale.</p>\n
\n
<p>Elle a publié ses travails de recherche dans la Review of Finance, Journal of Banking and Finance, Journal of Empirical Finance, Journal of Financial Markets, Energy Economics, Economic Modeling entre outres publications académiques et un livre intitulé : The Interrelationship Between Financial and Energy Markets.</p>\n
\n
<p>Sofia Ramos est co-titulaire de la Chaire "Shaping the Future of Finance" de l'ESSEC “Shaping the Future of Finance” et conseiller académique de la chaire ESSEC Amundi-Chair - Asset & Risk Management.</p>\n
\n
<p>Elle est titulaire d'un doctorat en Finance du Swiss Finance Institute -Université de Lausanne.</p>\n
\n
<p style="margin-left:9.0pt"> </p>
"""
"en" => """
<p>Sofia Ramos is Associate Professor of finance at ESSEC Business School (Paris-Singapore).</p>\n
\n
<p>She teaches Financial Management, Corporate Finance, ESG Investing and International finance courses in several masters and executive programmes. She has written business case studies for classes.</p>\n
\n
<p>She is Associate editor of the European Journal of Finance. Her research interests are primary in the area of Mutual Funds, Portfolio Management, ESG Investing Energy Finance and International Finance. She has published her work on the Review of Finance, Journal of Banking and Finance, Journal of Empirical Finance, Journal of Financial Markets, Energy Economics, Economic Modeling among other journals and a financial book in energy finance: The Interrelationship Between Financial and Energy Markets.</p>\n
\n
<p>She is co-chair professor of the chair “Shaping the Future of Finance” and academic advisor of the ESSEC Amundi-Chair in Asset & Risk Management.</p>\n
\n
<p>She holds a Ph.D. in Finance from the Swiss Finance Institute -University of Lausanne.</p>\n
\n
<p style="margin-left:9.0pt"> </p>
"""
]
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"fr" => "Marchés financiers - Pétrole, extraction de gaz et production"
"en" => "Capital Markets - Oil & Gas Extraction & Production"
]
"researchFields" => array:2 [
"fr" => "Marchés de l'énergie et des matières premières - Marchés financiers et institutions financières - Investissements et évaluation des actifs - Développement durable et comptabilité sociale - Investissement ESG (RSE) - finance verte - finance internationale - fonds communs de placement - Gestion de portefeuille"
"en" => "Energy & Commodity Markets - Financial Markets & Institutions - Investments & Asset Pricing - Sustainability & Social Accounting - CSR investing - green finance - international finance - mutual funds - portfolio management"
]
"teachingFields" => array:2 [
"fr" => "Marchés financiers et institutions financières - Finance d'entreprise - Marchés & industries de l'énergie et des matières premières - Développement durable et comptabilité sociale"
"en" => "Financial Markets & Institutions - Corporate Finance - Energy & commodity markets and industries - Sustainability & Social Accounting"
]
"distinctions" => []
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"year" => "2019"
"startDate" => "2014"
"endDate" => "2019"
"student" => "COVACHEV Svetoslav"
"firstJob" => "Risk Data Scientist - UniCredit Bulbank"
"label" => array:2 [
"fr" => "Essays on mutual funds"
"en" => "Essays on mutual funds"
]
"role" => array:2 [
"fr" => "Co-directeur de thèse"
"en" => "Thesis co-director"
]
"institution" => array:2 [
"fr" => "ESSEC Business School"
"en" => "ESSEC Business School"
]
"country" => array:2 [
"fr" => "France"
"en" => "France"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2233}
}
1 => Essec\Faculty\Model\These {#2256
#_index: null
#_id: null
#_source: array:9 [
"year" => "2018"
"startDate" => "2013"
"endDate" => "2018"
"student" => "MCCOURT Maurice"
"firstJob" => "Assistant Professor - university of melbourne"
"label" => array:2 [
"fr" => "Essays on private equity and mutual funds"
"en" => "Essays on private equity and mutual funds"
]
"role" => array:2 [
"fr" => "Co-directeur de thèse"
"en" => "Thesis co-director"
]
"institution" => array:2 [
"fr" => "ESSEC Business School"
"en" => "ESSEC Business School"
]
"country" => array:2 [
"fr" => "France"
"en" => "France"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2233}
}
]
"indexedAt" => "2024-12-22T02:21:22.000Z"
"contributions" => array:48 [
0 => Essec\Faculty\Model\Contribution {#2258
#_index: "academ_contributions"
#_id: "2616"
#_source: array:18 [
"id" => "2616"
"slug" => "the-cyclical-behaviour-of-commodities"
"yearMonth" => "2017-09"
"year" => "2017"
"title" => "The Cyclical Behaviour of Commodities"
"description" => "PEREIRA, M., RAMOS, S. et DIAS, J.G. (2017). The Cyclical Behaviour of Commodities. <i>The European Journal of Finance</i>, 23(12), pp. 1107-1128."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "PEREIRA M."
]
2 => array:1 [
"name" => "DIAS J. G."
]
]
"ouvrage" => ""
"keywords" => []
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => "https://www.researchgate.net/publication/305272896_The_cyclical_behaviour_of_commodities"
"publicationInfo" => array:3 [
"pages" => "1107-1128"
"volume" => "23"
"number" => "12"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "Commodities are known to exhibit cyclical behaviour. This paper studies the dynamics of commodities regimes and their implications for portfolio diversification. Using an extension of the regime-switching model, we find that the 12 commodities studied can be clustered into four groups with different regime dynamics, demonstrating that the asset class behaviour of commodities is far from homogeneous. The existence of two regimes is transversal to the assets studied. One regime is marked by high volatility and the other by low volatility. In both regimes, most of the commodities exhibit returns that are not statistically significantly different from those of the stock market regime. The exceptions are oil and natural gas during the low-volatility regime. The analysis of regime synchronization shows that our stock market proxy has low synchronization with commodities, which suggests potential diversification value from adding commodities to an equity portfolio. Based on portfolio optimization, we find that commodities are included in the optimal portfolios in the bull and bear regime of the Standard & Poor’s 500 index. The benefits of diversifying into commodities are particularly strong in the bear stock market regime."
"en" => "Commodities are known to exhibit cyclical behaviour. This paper studies the dynamics of commodities regimes and their implications for portfolio diversification. Using an extension of the regime-switching model, we find that the 12 commodities studied can be clustered into four groups with different regime dynamics, demonstrating that the asset class behaviour of commodities is far from homogeneous. The existence of two regimes is transversal to the assets studied. One regime is marked by high volatility and the other by low volatility. In both regimes, most of the commodities exhibit returns that are not statistically significantly different from those of the stock market regime. The exceptions are oil and natural gas during the low-volatility regime. The analysis of regime synchronization shows that our stock market proxy has low synchronization with commodities, which suggests potential diversification value from adding commodities to an equity portfolio. Based on portfolio optimization, we find that commodities are included in the optimal portfolios in the bull and bear regime of the Standard & Poor’s 500 index. The benefits of diversifying into commodities are particularly strong in the bear stock market regime."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
1 => Essec\Faculty\Model\Contribution {#2260
#_index: "academ_contributions"
#_id: "5855"
#_source: array:18 [
"id" => "5855"
"slug" => "energy-industrys-market-value-and-oil-price"
"yearMonth" => "2016-06"
"year" => "2016"
"title" => "Energy Industry’s Market Value and Oil Price"
"description" => "RAMOS, S., VEIGA, H. et WANG, C. (2016). Energy Industry’s Market Value and Oil Price. Dans: Energy and Commodity Finance Conference 2016."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "VEIGA H."
]
2 => array:1 [
"name" => "WANG C."
]
]
"ouvrage" => "Energy and Commodity Finance Conference 2016"
"keywords" => []
"updatedAt" => "2021-07-13 14:31:08"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => null
"volume" => null
"number" => null
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => null
"en" => null
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
2 => Essec\Faculty\Model\Contribution {#2262
#_index: "academ_contributions"
#_id: "6031"
#_source: array:18 [
"id" => "6031"
"slug" => "funds-efficiency-an-analysis-of-smart-beta-index-and-actively-managed-funds"
"yearMonth" => "2019-12"
"year" => "2019"
"title" => "Funds Efficiency: An Analysis of Smart Beta, Index and Actively Managed Funds"
"description" => "RAMOS, S., GALAN, J. et VEIGA, H. (2019). Funds Efficiency: An Analysis of Smart Beta, Index and Actively Managed Funds. Dans: 2019 Paris Financial Management Conference (PFMC2019)."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "GALAN J."
]
2 => array:1 [
"name" => "VEIGA H."
]
]
"ouvrage" => "2019 Paris Financial Management Conference (PFMC2019)"
"keywords" => []
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => null
"volume" => null
"number" => null
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => null
"en" => null
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
3 => Essec\Faculty\Model\Contribution {#2259
#_index: "academ_contributions"
#_id: "6377"
#_source: array:18 [
"id" => "6377"
"slug" => "lazy-investors-lazy-fund-managers-lousy-performance-culture-and-mutual-fund-management"
"yearMonth" => "2016-12"
"year" => "2016"
"title" => "Lazy Investors, Lazy Fund Managers, Lousy Performance, Culture and Mutual Fund Management"
"description" => "RAMOS, S. (2016). Lazy Investors, Lazy Fund Managers, Lousy Performance, Culture and Mutual Fund Management. Dans: 2016 Paris Financial Management Conference."
"authors" => array:1 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
]
"ouvrage" => "2016 Paris Financial Management Conference"
"keywords" => []
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => null
"volume" => null
"number" => null
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => null
"en" => null
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
4 => Essec\Faculty\Model\Contribution {#2263
#_index: "academ_contributions"
#_id: "6726"
#_source: array:18 [
"id" => "6726"
"slug" => "mutual-fund-size-versus-fees-when-big-boys-become-bad-boys"
"yearMonth" => "2016-10"
"year" => "2016"
"title" => "Mutual Fund Size Versus Fees: When Big Boys Become Bad Boys"
"description" => "KESWANI, A., MIGUEL, A., A., F. et RAMOS, S. (2016). Mutual Fund Size Versus Fees: When Big Boys Become Bad Boys. Dans: 2016 Financial Management Association (FMA) Applied Finance Conference."
"authors" => array:4 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "KESWANI A."
]
2 => array:1 [
"name" => "MIGUEL A."
]
3 => array:1 [
"name" => "A. F."
]
]
"ouvrage" => "2016 Financial Management Association (FMA) Applied Finance Conference"
"keywords" => []
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => null
"volume" => null
"number" => null
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => null
"en" => null
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
5 => Essec\Faculty\Model\Contribution {#2257
#_index: "academ_contributions"
#_id: "6877"
#_source: array:18 [
"id" => "6877"
"slug" => "persistence-and-skill-in-the-performance-of-mutual-fund-families"
"yearMonth" => "2018-12"
"year" => "2018"
"title" => "Persistence and Skill in the Performance of Mutual Fund Families"
"description" => "MCCOURT, M. et RAMOS, S. (2018). Persistence and Skill in the Performance of Mutual Fund Families. Dans: 2018 Paris Financial Management Conference."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "MCCOURT M."
]
]
"ouvrage" => "2018 Paris Financial Management Conference"
"keywords" => []
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => null
"volume" => null
"number" => null
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => null
"en" => null
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
6 => Essec\Faculty\Model\Contribution {#2261
#_index: "academ_contributions"
#_id: "10317"
#_source: array:18 [
"id" => "10317"
"slug" => "competition-and-stock-market-development"
"yearMonth" => "2009-01"
"year" => "2009"
"title" => "Competition and stock market development"
"description" => "RAMOS, S. (2009). Competition and stock market development. <i>The European Journal of Finance</i>, 15(43862), pp. 231-247."
"authors" => array:1 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
]
"ouvrage" => ""
"keywords" => array:1 [
0 => "stock exchanges"
]
"updatedAt" => "2021-07-13 14:31:31"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => "231-247"
"volume" => "15"
"number" => "43862"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => null
"en" => null
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
7 => Essec\Faculty\Model\Contribution {#2264
#_index: "academ_contributions"
#_id: "708"
#_source: array:18 [
"id" => "708"
"slug" => "banking-industry-performance-in-the-wake-of-the-global-financial-crisis"
"yearMonth" => "2016-12"
"year" => "2016"
"title" => "Banking Industry Performance in the Wake of the Global Financial Crisis"
"description" => "BHIMJEE, D.C., RAMOS, S. et DIAS, J.G. (2016). Banking Industry Performance in the Wake of the Global Financial Crisis. <i>International Review of Financial Analysis</i>, 48, pp. 376-387."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "BHIMJEE D. C."
]
2 => array:1 [
"name" => "DIAS J. G."
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Global financial crisis"
1 => "International financial contagion"
2 => "‘Subprime’ crisis"
3 => "Banking institutions"
4 => "Heterogeneous regime-switching model (HRSM)"
]
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => "https://www.sciencedirect.com/science/article/abs/pii/S1057521916000065"
"publicationInfo" => array:3 [
"pages" => "376-387"
"volume" => "48"
"number" => null
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "This paper analyzes the performance of the banking industry both prior to and during the global financial crisis (GFC). Through the application of a panel regime-switching model designed to capture heterogeneity, our findings suggest that global banking performance can be grouped into two distinctive clusters, each with its own specific regime dynamics. Before the crisis, a cluster of banking institutions pertaining to advanced economies stood out for its buoyant stock market performance, whereas a second cluster, mainly composed of banking indexes that belong to emerging economies, exhibited a more subdued performance. Further, this differentiation was accompanied by low regime synchronization between the clusters."
"en" => "This paper analyzes the performance of the banking industry both prior to and during the global financial crisis (GFC). Through the application of a panel regime-switching model designed to capture heterogeneity, our findings suggest that global banking performance can be grouped into two distinctive clusters, each with its own specific regime dynamics. Before the crisis, a cluster of banking institutions pertaining to advanced economies stood out for its buoyant stock market performance, whereas a second cluster, mainly composed of banking indexes that belong to emerging economies, exhibited a more subdued performance. Further, this differentiation was accompanied by low regime synchronization between the clusters."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
8 => Essec\Faculty\Model\Contribution {#2265
#_index: "academ_contributions"
#_id: "2926"
#_source: array:18 [
"id" => "2926"
"slug" => "advances-in-information-systems-research-education-and-practice"
"yearMonth" => "2008-01"
"year" => "2008"
"title" => "Advances in Information Systems Research, Education and Practice"
"description" => "AVISON, D., KASPER, G.M., PERNICI, B., RAMOS, S. et ROODE, D. (2008). <i>Advances in Information Systems Research, Education and Practice</i>. Springer, 214 pages."
"authors" => array:5 [
0 => array:3 [
"name" => "AVISON David"
"bid" => "B00000019"
"slug" => "avison-david"
]
1 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
2 => array:1 [
"name" => "KASPER G.M."
]
3 => array:1 [
"name" => "PERNICI B."
]
4 => array:1 [
"name" => "ROODE D."
]
]
"ouvrage" => ""
"keywords" => []
"updatedAt" => "2021-09-06 14:06:32"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => null
"volume" => null
"number" => null
]
"type" => array:2 [
"fr" => "Livres"
"en" => "Books"
]
"support_type" => array:2 [
"fr" => "Editeur"
"en" => "Publisher"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => null
"en" => null
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
9 => Essec\Faculty\Model\Contribution {#2266
#_index: "academ_contributions"
#_id: "891"
#_source: array:18 [
"id" => "891"
"slug" => "cost-effectiveness-analysis-of-the-sapien-3-tavi-valve-compared-with-surgery-in-intermediate-risk-patients"
"yearMonth" => "2019-04"
"year" => "2019"
"title" => "Cost-effectiveness analysis of the SAPIEN 3 TAVI valve compared with surgery in intermediate-risk patients"
"description" => "GOODALL, G., LAMOTTE, M., RAMOS, S., MAUNOURY, F., PEJCHALOVA, B. et DE POUVOURVILLE, G. (2019). Cost-effectiveness analysis of the SAPIEN 3 TAVI valve compared with surgery in intermediate-risk patients. <i>Journal of Medical Economics</i>, 22(4), pp. 289-296."
"authors" => array:6 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:3 [
"name" => "DE POUVOURVILLE Gérard"
"bid" => "B00072308"
"slug" => "de-pouvourville-gerard"
]
2 => array:1 [
"name" => "GOODALL G."
]
3 => array:1 [
"name" => "LAMOTTE M."
]
4 => array:1 [
"name" => "MAUNOURY F."
]
5 => array:1 [
"name" => "PEJCHALOVA B."
]
]
"ouvrage" => ""
"keywords" => array:7 [
0 => "Cost-effectiveness"
1 => "I10"
2 => "I39"
3 => "SAPIEN 3"
4 => "TAVI"
5 => "severe aortic stenosis"
6 => "transcatheter aortic valve"
]
"updatedAt" => "2023-03-15 13:14:13"
"publicationUrl" => "https://pubmed.ncbi.nlm.nih.gov/30547704/"
"publicationInfo" => array:3 [
"pages" => "289-296"
"volume" => "22"
"number" => "4"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "L'implantation par voie transcatherale de valves aortiques (TAVI) est devenue la technique de référence du traitement des sténoses aortiques sévères. L'étude évalue le coût et les bénéfices de l'utilisation de cette technique chres les patients présentant un risque intermédiaire, dans le contexte français."
"en" => "Transcatheter aortic valve implantation (TAVI) has become the therapy of choice for treating severe aortic stenosis in patients at high-risk for surgery or where it is considered too risky to attempt. We sought to evaluate the potential cost and clinical impact of TAVI in intermediate risk patients from a French collective perspective."
]
"authors_fields" => array:2 [
"fr" => "Management"
"en" => "Management"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
10 => Essec\Faculty\Model\Contribution {#2267
#_index: "academ_contributions"
#_id: "1013"
#_source: array:18 [
"id" => "1013"
"slug" => "do-investors-price-industry-risk-evidence-from-the-cross-section-of-the-oil-industry"
"yearMonth" => "2017-03"
"year" => "2017"
"title" => "Do Investors Price Industry Risk? Evidence from the Cross-Section of the Oil Industry"
"description" => "RAMOS, S., TAAMOUTI, A., VEIGA, H. et WANG, C.W. (2017). Do Investors Price Industry Risk? Evidence from the Cross-Section of the Oil Industry. <i>Journal of Energy Markets</i>, 10(1), pp. 79-108."
"authors" => array:4 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "TAAMOUTI A."
]
2 => array:1 [
"name" => "VEIGA H."
]
3 => array:1 [
"name" => "WANG C.-W."
]
]
"ouvrage" => ""
"keywords" => array:6 [
0 => "Anomalies"
1 => "Asset pricing"
2 => "Cross-sectional tests"
3 => "Oil industry"
4 => "Oil prices"
5 => "Time series tests"
]
"updatedAt" => "2023-01-28 01:00:12"
"publicationUrl" => "https://core.ac.uk/download/pdf/302958119.pdf"
"publicationInfo" => array:3 [
"pages" => "79-108"
"volume" => "10"
"number" => "1"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "Recent research identifies several industry-related patterns that standard asset pricing models cannot explain effectively. This paper investigates what explains the cross-section of returns of firms in the oil industry and, in particular, how well an oil factor performs in comparison with the common systematic factors identified in the literature. We conduct a time series analysis and demonstrate that the oil factor has substantial explanatory power over traditional factors. A cross-sectional regression shows that the size, momentum and oil factors are associated with a positive risk premium and are able to explain the cross-sectional variation in stock returns in the oil industry. Our results suggest that investors demand compensation for the exposure to oil price changes, which has implications for the computation of the cost of equity."
"en" => "Recent research identifies several industry-related patterns that standard asset pricing models cannot explain effectively. This paper investigates what explains the cross-section of returns of firms in the oil industry and, in particular, how well an oil factor performs in comparison with the common systematic factors identified in the literature. We conduct a time series analysis and demonstrate that the oil factor has substantial explanatory power over traditional factors. A cross-sectional regression shows that the size, momentum and oil factors are associated with a positive risk premium and are able to explain the cross-sectional variation in stock returns in the oil industry. Our results suggest that investors demand compensation for the exposure to oil price changes, which has implications for the computation of the cost of equity."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
11 => Essec\Faculty\Model\Contribution {#2268
#_index: "academ_contributions"
#_id: "12696"
#_source: array:18 [
"id" => "12696"
"slug" => "sustainable-investing-shaping-the-future-of-finance"
"yearMonth" => "2021-04"
"year" => "2021"
"title" => "Sustainable Investing: Shaping The Future Of Finance"
"description" => "RAMOS, S. (2021). Sustainable Investing: Shaping The Future Of Finance. <i>ESSEC Knowledge</i>."
"authors" => array:1 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
]
"ouvrage" => ""
"keywords" => []
"updatedAt" => "2023-01-27 14:06:52"
"publicationUrl" => "https://knowledge.essec.edu/en/economy-finance/sustainable-investing-shaping-future-finance.html"
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Articles ou vidéos de vulgarisation"
"en" => "Press article, video or other popular media"
]
"support_type" => array:2 [
"fr" => "Presse"
"en" => "Press"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
12 => Essec\Faculty\Model\Contribution {#2269
#_index: "academ_contributions"
#_id: "13027"
#_source: array:18 [
"id" => "13027"
"slug" => "disagreement-in-mutual-fund-sustainability-labelling"
"yearMonth" => "2022-05"
"year" => "2022"
"title" => "Disagreement in mutual fund sustainability labelling"
"description" => "RAMOS, S., CORTEZ, M.C. et SILVA, F. (2022). Disagreement in mutual fund sustainability labelling. Dans: 2022 Sustainable Finance Conference. Paris."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CORTEZ Maria Céu"
]
2 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => "2022 Sustainable Finance Conference"
"keywords" => []
"updatedAt" => "2024-07-19 10:55:21"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
13 => Essec\Faculty\Model\Contribution {#2270
#_index: "academ_contributions"
#_id: "13028"
#_source: array:18 [
"id" => "13028"
"slug" => "disagreement-in-mutual-fund-sustainability-labelling"
"yearMonth" => "2022-05"
"year" => "2022"
"title" => "Disagreement in mutual fund sustainability labelling"
"description" => "RAMOS, S., CORTEZ, M.C. et SILVA, F. (2022). Disagreement in mutual fund sustainability labelling. Dans: 2022 ESSEC-AMUNDI Workshop. Paris."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CORTEZ Maria Céu"
]
2 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => "2022 ESSEC-AMUNDI Workshop"
"keywords" => []
"updatedAt" => "2024-07-19 10:55:50"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
14 => Essec\Faculty\Model\Contribution {#2271
#_index: "academ_contributions"
#_id: "14163"
#_source: array:18 [
"id" => "14163"
"slug" => "divergence-in-mutual-fund-sustainability-labelling"
"yearMonth" => "2022-11"
"year" => "2022"
"title" => "Divergence in mutual fund sustainability labelling"
"description" => "RAMOS, S., CORTEZ, M.C. et SILVA, F. (2022). Divergence in mutual fund sustainability labelling. Dans: 2022 Sustainable Financial Innovation Centre (SFiC) Annual Conference. Dubai."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CORTEZ Maria Céu"
]
2 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => "2022 Sustainable Financial Innovation Centre (SFiC) Annual Conference"
"keywords" => []
"updatedAt" => "2024-07-19 10:53:41"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
15 => Essec\Faculty\Model\Contribution {#2272
#_index: "academ_contributions"
#_id: "14164"
#_source: array:18 [
"id" => "14164"
"slug" => "divergence-in-mutual-fund-sustainability-labelling"
"yearMonth" => "2022-10"
"year" => "2022"
"title" => "Divergence in Mutual Fund Sustainability Labelling"
"description" => "RAMOS, S., CORTEZ, M.C. et SILVA, F. (2022). Divergence in Mutual Fund Sustainability Labelling. Dans: 2022 Sustainable and Socially Responsible Finance Conference. Bologna."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CORTEZ Maria Céu"
]
2 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => "2022 Sustainable and Socially Responsible Finance Conference"
"keywords" => []
"updatedAt" => "2024-07-19 10:54:16"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
16 => Essec\Faculty\Model\Contribution {#2273
#_index: "academ_contributions"
#_id: "14416"
#_source: array:18 [
"id" => "14416"
"slug" => "are-esg-factors-truly-unique"
"yearMonth" => "2023-07"
"year" => "2023"
"title" => "Are ESG Factors Truly Unique?"
"description" => "COVACHEV, S., MARTEL, J. et RAMOS, S. (2023). Are ESG Factors Truly Unique? Dans: 12th Portuguese Financial Network Conference 2023. Funchal."
"authors" => array:3 [
0 => array:3 [
"name" => "MARTEL Jocelyn"
"bid" => "B00000350"
"slug" => "martel-jocelyn"
]
1 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
2 => array:1 [
"name" => "COVACHEV Svetoslav"
]
]
"ouvrage" => "12th Portuguese Financial Network Conference 2023"
"keywords" => []
"updatedAt" => "2024-07-19 10:51:18"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
17 => Essec\Faculty\Model\Contribution {#2274
#_index: "academ_contributions"
#_id: "14576"
#_source: array:18 [
"id" => "14576"
"slug" => "2022-world-finance-conference-wfc"
"yearMonth" => "2022-08"
"year" => "2022"
"title" => "2022 World Finance Conference (WFC)"
"description" => "RAMOS, S., CORTEZ, M.C. et SILVA, F. (2022). 2022 World Finance Conference (WFC). Dans: 2022 World Finance Conference (WFC). Turin."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CORTEZ Maria Céu"
]
2 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => "2022 World Finance Conference (WFC)"
"keywords" => []
"updatedAt" => "2024-07-19 10:54:47"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
18 => Essec\Faculty\Model\Contribution {#2275
#_index: "academ_contributions"
#_id: "14925"
#_source: array:18 [
"id" => "14925"
"slug" => "in-labels-we-trust-the-influence-of-sustainability-labels-in-mutual-fund-flows"
"yearMonth" => "2024-06"
"year" => "2024"
"title" => "In Labels we Trust? The Influence of Sustainability Labels in Mutual Fund Flows"
"description" => "RAMOS, S., CORTEZ, M.C., COVACHEV, S. et SILVA, F. (2024). In Labels we Trust? The Influence of Sustainability Labels in Mutual Fund Flows. Dans: 30th Annual Global Finance Conference 2024. Cagliari."
"authors" => array:4 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CORTEZ Maria Céu"
]
2 => array:1 [
"name" => "COVACHEV Svetoslav"
]
3 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => "30th Annual Global Finance Conference 2024"
"keywords" => []
"updatedAt" => "2024-07-19 10:40:55"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
19 => Essec\Faculty\Model\Contribution {#2276
#_index: "academ_contributions"
#_id: "14936"
#_source: array:18 [
"id" => "14936"
"slug" => "dispelling-esg-investing-risk-misconceptions"
"yearMonth" => "2024-06"
"year" => "2024"
"title" => "Dispelling ESG Investing Risk Misconceptions"
"description" => "RAMOS, S., LOBAN, L. et VEIGA, H. (2024). Dispelling ESG Investing Risk Misconceptions. Dans: 2024 Financial Management Association (FMA) European Conference. Turin."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "LOBAN Lidia"
]
2 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => "2024 Financial Management Association (FMA) European Conference"
"keywords" => []
"updatedAt" => "2024-07-19 10:48:36"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
20 => Essec\Faculty\Model\Contribution {#2277
#_index: "academ_contributions"
#_id: "14940"
#_source: array:18 [
"id" => "14940"
"slug" => "dispelling-esg-investing-risk-misconceptions"
"yearMonth" => "2024-05"
"year" => "2024"
"title" => "Dispelling ESG Investing Risk Misconceptions"
"description" => "RAMOS, S., LOBAN, L. et VEIGA, H. (2024). Dispelling ESG Investing Risk Misconceptions. Dans: 40th International Conference of the French Finance Association (AFFI). Lille."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "LOBAN Lidia"
]
2 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => "40th International Conference of the French Finance Association (AFFI)"
"keywords" => []
"updatedAt" => "2024-07-19 10:49:53"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
21 => Essec\Faculty\Model\Contribution {#2278
#_index: "academ_contributions"
#_id: "9519"
#_source: array:18 [
"id" => "9519"
"slug" => "smart-beta-a-revolution-in-indexing-or-a-step-into-active-investing"
"yearMonth" => "2018-10"
"year" => "2018"
"title" => "Smart Beta: A Revolution in Indexing or a Step Into Active Investing?"
"description" => "RAMOS, S. et COVACHEV, S. (2018). Smart Beta: A Revolution in Indexing or a Step Into Active Investing? ESSEC Business School."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "COVACHEV Svetoslav"
]
]
"ouvrage" => ""
"keywords" => array:6 [
0 => "Active and passive investing Indexing methods"
1 => "Factors and risk premia factors"
2 => "Multifactor models"
3 => "Investment styles"
4 => "Financial innovation"
5 => "Finance Accounting and Control"
]
"updatedAt" => "2022-10-12 11:26:21"
"publicationUrl" => "http://dspace.essec.fr/handle/essec/6380"
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Etudes de cas déposées"
"en" => "Published cases"
]
"support_type" => array:2 [
"fr" => "Editeur"
"en" => "Publisher"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "In the investment industry is common to differentiate between passive or active approaches. This dichotomic view has been challenged with smart beta funds that combine elements of both approaches. Therefore, the emergence of smart beta funds provides an opportunity to discuss core concepts in the investments field. The case introduces smart beta funds and its rationale. Moreover, it describes the several types of smart beta funds, their advantages and risks for investors. The case should lead students to think about the innovation brought by the concept of smart beta funds, if it is a new form of passive indexing or just a reshuffle of active management."
"en" => "In the investment industry is common to differentiate between passive or active approaches. This dichotomic view has been challenged with smart beta funds that combine elements of both approaches. Therefore, the emergence of smart beta funds provides an opportunity to discuss core concepts in the investments field. The case introduces smart beta funds and its rationale. Moreover, it describes the several types of smart beta funds, their advantages and risks for investors. The case should lead students to think about the innovation brought by the concept of smart beta funds, if it is a new form of passive indexing or just a reshuffle of active management."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
22 => Essec\Faculty\Model\Contribution {#2279
#_index: "academ_contributions"
#_id: "10125"
#_source: array:18 [
"id" => "10125"
"slug" => "geographical-versus-industrial-diversification-constraints-matter"
"yearMonth" => "2006-01"
"year" => "2006"
"title" => "Geographical versus Industrial Diversification: constraints matter"
"description" => "RAMOS, S. et EHLING, P. (2006). Geographical versus Industrial Diversification: constraints matter. <i>Journal of Empirical Finance</i>, 4(5), pp. 396-416."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "EHLING Paul"
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Block-bootstrap tests"
1 => "Diversification gains"
2 => "EMU"
3 => "Geographic diversification"
4 => "Industry diversification"
]
"updatedAt" => "2021-07-13 14:31:27"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => "396-416"
"volume" => "4"
"number" => "5"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
This research addresseswhether geographic diversification provides benefits over industry diversification in\n
the Eurozone. Our contribution is to show that in the absence of constraints, no empirical evidence is found to\n
support the argument that geographic diversification dominates industry diversification, except in the euro\n
subperiod. With short-selling constraints, however, the tangency portfolio of geographic diversification is not\n
attainable by industry diversification. In out-of-sample geographic minimum variance portfolios outperform\n
industry portfolios in economic terms, although we cannot establish statistical significance.
"""
"en" => """
This research addresseswhether geographic diversification provides benefits over industry diversification in\n
the Eurozone. Our contribution is to show that in the absence of constraints, no empirical evidence is found to\n
support the argument that geographic diversification dominates industry diversification, except in the euro\n
subperiod. With short-selling constraints, however, the tangency portfolio of geographic diversification is not\n
attainable by industry diversification. In out-of-sample geographic minimum variance portfolios outperform\n
industry portfolios in economic terms, although we cannot establish statistical significance.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
23 => Essec\Faculty\Model\Contribution {#2280
#_index: "academ_contributions"
#_id: "10290"
#_source: array:18 [
"id" => "10290"
"slug" => "stock-exchanges-competition-in-a-simple-model-of-capital-market-equilibrium"
"yearMonth" => "2008-01"
"year" => "2008"
"title" => "Stock exchanges competition in a simple model of capital market equilibrium"
"description" => "RAMOS, S. et VON THADDEN, E.L. (2008). Stock exchanges competition in a simple model of capital market equilibrium. <i>Journal of Financial Markets</i>, 11(3), pp. 284-307."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "VON THADDEN Ernst-Ludvig"
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Stock exchange competition"
1 => "Capital markets equilibrium"
2 => "Transactions costs"
3 => "Home bias"
4 => """
Crossborder\n
equity flows
"""
]
"updatedAt" => "2021-07-13 14:31:31"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => "284-307"
"volume" => "11"
"number" => "3"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
This paper uses a simple model of mean-variance capital markets equilibrium with proportional\n
transactions costs to analyze the competition of stock markets for investors. We assume that equity\n
trading is costly and endogenize transactions costs as variables strategically influenced by stock\n
exchanges. Among other things, the model predicts that increasing financial market correlation leads\n
to a decrease of transaction costs, an increase in cross-border trading activity, and to a decrease in the\n
home bias of international equity flows. These predictions are consistent with the recent evolution of\n
international stock markets.
"""
"en" => """
This paper uses a simple model of mean-variance capital markets equilibrium with proportional\n
transactions costs to analyze the competition of stock markets for investors. We assume that equity\n
trading is costly and endogenize transactions costs as variables strategically influenced by stock\n
exchanges. Among other things, the model predicts that increasing financial market correlation leads\n
to a decrease of transaction costs, an increase in cross-border trading activity, and to a decrease in the\n
home bias of international equity flows. These predictions are consistent with the recent evolution of\n
international stock markets.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
24 => Essec\Faculty\Model\Contribution {#2281
#_index: "academ_contributions"
#_id: "10368"
#_source: array:18 [
"id" => "10368"
"slug" => "the-size-and-structure-of-the-world-mutual-fund-industry"
"yearMonth" => "2009-01"
"year" => "2009"
"title" => "The size and structure of the world mutual fund industry"
"description" => "RAMOS, S. (2009). The size and structure of the world mutual fund industry. <i>European Financial Management</i>, 15(1), pp. 145-180."
"authors" => array:1 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
]
"ouvrage" => ""
"keywords" => []
"updatedAt" => "2021-07-13 14:31:33"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => "145-180"
"volume" => "15"
"number" => "1"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
This paper analyses the mutual fund industry for 20 countries using a new\n
database of more than 50,000 mutual funds. The results suggest that more\n
developed industries provide more benefits to investors as they diversify more\n
internationally, charge lower annual charges and present more product sophistication.\n
The results also have important policy implications by emphasising the\n
role of competition and contestability in industry development. Fewer barriers\n
to entry are positively associated with a larger industry, and concomitantly with\n
more efficiency in terms of returns and fees.
"""
"en" => """
This paper analyses the mutual fund industry for 20 countries using a new\n
database of more than 50,000 mutual funds. The results suggest that more\n
developed industries provide more benefits to investors as they diversify more\n
internationally, charge lower annual charges and present more product sophistication.\n
The results also have important policy implications by emphasising the\n
role of competition and contestability in industry development. Fewer barriers\n
to entry are positively associated with a larger industry, and concomitantly with\n
more efficiency in terms of returns and fees.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
25 => Essec\Faculty\Model\Contribution {#2282
#_index: "academ_contributions"
#_id: "10433"
#_source: array:18 [
"id" => "10433"
"slug" => "risk-factors-in-oil-and-gas-industry-returns-international-evidence"
"yearMonth" => "2011-05"
"year" => "2011"
"title" => "Risk Factors in Oil and Gas Industry Returns: International Evidence"
"description" => "RAMOS, S. et VEIGA, H. (2011). Risk Factors in Oil and Gas Industry Returns: International Evidence. <i>Energy Economics</i>, 33(3), pp. 525-542."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => ""
"keywords" => array:3 [
0 => """
Oil industry\n
Oil industry
"""
1 => "Panel data"
2 => "Scaled oil prices"
]
"updatedAt" => "2021-07-13 14:31:35"
"publicationUrl" => "https://doi.org/10.1016/j.eneco.2010.10.005"
"publicationInfo" => array:3 [
"pages" => "525-542"
"volume" => "33"
"number" => "3"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
The recent boom in oil prices has attracted many investors to oil companies in search of both returns and\n
diversification benefits. This analysis of the risk factors of investing in the oil and gas industry in 34 countries finds\n
evidence that oil price is a globally priced factor for the oil industry. The oil and gas sector in developed countries\n
responds more strongly to oil price changes than in emergingmarkets. Oil and gas industry returns also respond\n
asymmetrically to changes in oil prices; oil price rises have a greater impact than oil price drops. There is no\n
parallel to the asymmetry of oil price changes in other industries related to commodities. If there is any\n
asymmetry, it is in the opposite direction fromoil. Negative commodity price changes have a greater impact than\n
positive ones. The results seemto indicate that the oil and gas industry is distinguished by a pass-through effect.
"""
"en" => """
The recent boom in oil prices has attracted many investors to oil companies in search of both returns and\n
diversification benefits. This analysis of the risk factors of investing in the oil and gas industry in 34 countries finds\n
evidence that oil price is a globally priced factor for the oil industry. The oil and gas sector in developed countries\n
responds more strongly to oil price changes than in emergingmarkets. Oil and gas industry returns also respond\n
asymmetrically to changes in oil prices; oil price rises have a greater impact than oil price drops. There is no\n
parallel to the asymmetry of oil price changes in other industries related to commodities. If there is any\n
asymmetry, it is in the opposite direction fromoil. Negative commodity price changes have a greater impact than\n
positive ones. The results seemto indicate that the oil and gas industry is distinguished by a pass-through effect.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
26 => Essec\Faculty\Model\Contribution {#2283
#_index: "academ_contributions"
#_id: "10442"
#_source: array:18 [
"id" => "10442"
"slug" => "when-markets-fall-down-are-emerging-markets-all-equal"
"yearMonth" => "2011-01"
"year" => "2011"
"title" => "When markets fall down: are emerging markets all equal?"
"description" => "RAMOS, S., DIAS, J. et VERMUNT, J. (2011). When markets fall down: are emerging markets all equal? <i>International Journal of Finance and Economics</i>, 16(1), pp. 324-338."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "DIAS José"
]
2 => array:1 [
"name" => "VERMUNT Joeren"
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Emerging markets"
1 => "bull"
2 => "bear"
3 => "heterogeneity"
4 => "switching-regime model"
]
"updatedAt" => "2021-07-13 14:31:35"
"publicationUrl" => "https://www.researchgate.net/publication/254456874_When_markets_fall_down_Are_emerging_markets_all_the_same"
"publicationInfo" => array:3 [
"pages" => "324-338"
"volume" => "16"
"number" => "1"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
This paper studies the dynamics of stock market regimes in emerging markets. Using a mixture version of the standard\n
regime-switching model, we find that the 18 analysed emerging markets can be clustered into three groups. Whereas\n
each of these three groups is characterized by the same two regimes—a bull state with positive returns and low volatility\n
and a bear state with negative returns and high volatility—they clearly differ with respect to their regime-switching\n
dynamics. The first group contains stock markets which swing frequently between the two regimes, the second group\n
shows more regime persistence, and the third group consists of stock markets that are less likely than the others to move\n
to a bear regime period. Standard practice among stock market analysts is to group emerging markets by geographical\n
region. The fact that our model-based clustering is only weakly related to such a regional classification demonstrates the\n
limited validity of the latter. Moreover, a detailed analysis of regime synchronicities across the 18 studied emerging\n
markets shows that there is evidence of regime synchronicity for certain pairs of markets, but this does not rule out that\n
two synchronized markets have different regime dynamics and thus belong to different regime-switching clusters.\n
Hence, our results show that it is incorrect to treat the studied emerging markets as a single homogeneous group\n
because there is strong evidence for substantial differences in their regime-switching dynamics
"""
"en" => """
This paper studies the dynamics of stock market regimes in emerging markets. Using a mixture version of the standard\n
regime-switching model, we find that the 18 analysed emerging markets can be clustered into three groups. Whereas\n
each of these three groups is characterized by the same two regimes—a bull state with positive returns and low volatility\n
and a bear state with negative returns and high volatility—they clearly differ with respect to their regime-switching\n
dynamics. The first group contains stock markets which swing frequently between the two regimes, the second group\n
shows more regime persistence, and the third group consists of stock markets that are less likely than the others to move\n
to a bear regime period. Standard practice among stock market analysts is to group emerging markets by geographical\n
region. The fact that our model-based clustering is only weakly related to such a regional classification demonstrates the\n
limited validity of the latter. Moreover, a detailed analysis of regime synchronicities across the 18 studied emerging\n
markets shows that there is evidence of regime synchronicity for certain pairs of markets, but this does not rule out that\n
two synchronized markets have different regime dynamics and thus belong to different regime-switching clusters.\n
Hence, our results show that it is incorrect to treat the studied emerging markets as a single homogeneous group\n
because there is strong evidence for substantial differences in their regime-switching dynamics
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
27 => Essec\Faculty\Model\Contribution {#2284
#_index: "academ_contributions"
#_id: "10476"
#_source: array:18 [
"id" => "10476"
"slug" => "the-flow-performance-relationship-around-the-world"
"yearMonth" => "2012-01"
"year" => "2012"
"title" => "The flow-performance relationship around the world"
"description" => "RAMOS, S., FERREIRA, M., KESWANI, A. et MIGUEL, A. (2012). The flow-performance relationship around the world. <i>Journal of Banking & Finance</i>, 36(6), pp. 1759-1780."
"authors" => array:4 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "FERREIRA Miguel"
]
2 => array:1 [
"name" => "KESWANI Aneel"
]
3 => array:1 [
"name" => "MIGUEL António"
]
]
"ouvrage" => ""
"keywords" => array:4 [
0 => "mutual funds"
1 => "Flow-performance relationship"
2 => "Mutual fund flows"
3 => "Convexity"
]
"updatedAt" => "2021-07-13 14:31:36"
"publicationUrl" => "https://doi.org/10.1016/j.jbankfin.2012.01.019"
"publicationInfo" => array:3 [
"pages" => "1759-1780"
"volume" => "36"
"number" => "6"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
We use a new dataset to study how mutual fund flows depend on past performance across 28 countries.\n
We show that there are marked differences in the flow-performance relationship across countries, suggesting\n
that US findings concerning its shape do not apply universally. We find that mutual fund investors\n
sell losers more and buy winners less in more developed countries. This is because investors in more\n
developed countries are more sophisticated and face lower costs of participating in the mutual fund\n
industry. Higher country-level convexity is positively associated with higher levels of risk taking by fund\n
managers.
"""
"en" => """
We use a new dataset to study how mutual fund flows depend on past performance across 28 countries.\n
We show that there are marked differences in the flow-performance relationship across countries, suggesting\n
that US findings concerning its shape do not apply universally. We find that mutual fund investors\n
sell losers more and buy winners less in more developed countries. This is because investors in more\n
developed countries are more sophisticated and face lower costs of participating in the mutual fund\n
industry. Higher country-level convexity is positively associated with higher levels of risk taking by fund\n
managers.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
28 => Essec\Faculty\Model\Contribution {#2285
#_index: "academ_contributions"
#_id: "10483"
#_source: array:18 [
"id" => "10483"
"slug" => "a-core-periphery-framework-in-stock-markets-of-the-euro-zone"
"yearMonth" => "2013-01"
"year" => "2013"
"title" => "A core–periphery framework in stock markets of the euro zone"
"description" => "RAMOS, S. et DIAS, J. (2013). A core–periphery framework in stock markets of the euro zone. <i>Economic Modelling</i>, 35(C), pp. 320-329."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "DIAS José"
]
]
"ouvrage" => ""
"keywords" => array:3 [
0 => "EMY"
1 => "Regime switching models"
2 => "Stock market cycles"
]
"updatedAt" => "2021-07-13 14:31:36"
"publicationUrl" => "https://www.sciencedirect.com/science/article/abs/pii/S0264999313002782"
"publicationInfo" => array:3 [
"pages" => "320-329"
"volume" => "35"
"number" => "C"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
The introduction of the euro was expected to have an effect not only on real convergence of economies\n
but also on stock markets. This research compares the dynamics and synchronization of stock market\n
regimes in European markets before and after the euro launch. Countries of the euro zone are found to\n
have different dynamics with regard to switching between bull and bear markets, but the differences become\n
less pronounced after the introduction of the single currency, increasing the overall level of stock\n
market synchronization. Nevertheless, Austria and Portugal reduced the level of regime synchronization\n
with other stock markets. The results delineate a framework of core–periphery stock markets, i.e., a large\n
group of stock markets that share the same market regime, with some others on the periphery characterized\n
by distinctive behavior.
"""
"en" => """
The introduction of the euro was expected to have an effect not only on real convergence of economies\n
but also on stock markets. This research compares the dynamics and synchronization of stock market\n
regimes in European markets before and after the euro launch. Countries of the euro zone are found to\n
have different dynamics with regard to switching between bull and bear markets, but the differences become\n
less pronounced after the introduction of the single currency, increasing the overall level of stock\n
market synchronization. Nevertheless, Austria and Portugal reduced the level of regime synchronization\n
with other stock markets. The results delineate a framework of core–periphery stock markets, i.e., a large\n
group of stock markets that share the same market regime, with some others on the periphery characterized\n
by distinctive behavior.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
29 => Essec\Faculty\Model\Contribution {#2286
#_index: "academ_contributions"
#_id: "10507"
#_source: array:18 [
"id" => "10507"
"slug" => "oil-price-asymmetric-effects-answering-the-puzzle-in-international-stock-markets"
"yearMonth" => "2013-07"
"year" => "2013"
"title" => "Oil Price Asymmetric Effects: Answering the Puzzle in International Stock Markets"
"description" => "RAMOS, S. et VEIGA, H. (2013). Oil Price Asymmetric Effects: Answering the Puzzle in International Stock Markets. <i>Energy Economics</i>, 38(1), pp. 136-145."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Asymmetric effects"
1 => "International stock markets"
2 => "Oil prices"
3 => "Panel data"
4 => "Oil price volatility"
]
"updatedAt" => "2021-07-13 14:31:37"
"publicationUrl" => "https://www.sciencedirect.com/science/article/pii/S0140988313000601"
"publicationInfo" => array:3 [
"pages" => "136-145"
"volume" => "38"
"number" => "1"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
This paper finds evidence that effects for oil-importing and oil-exporting countries run in opposite directions. Oil price hikes have a\n
negative effect on the stock markets of oil-importing countries, while the impact is positive for the stock\n
markets of oil-exporting countries. Statistical tests support the presence of asymmetric effects only in\n
oil-importing countries. Oil price volatility has a negative impact in stock markets of oil-importing countries\n
and positive in oil-exporting countries. Moreover, oil volatility seems to be affected asymmetrically by oil\n
price changes. Oil price drops increase oil volatility more than oil price hikes do. Overall, the evidence\n
seems to support that falls in oil prices do not impact stock markets because their positive effects are offset\n
by negative effects of oil price volatility, canceling out effects for oil-importing countries.
"""
"en" => """
This paper finds evidence that effects for oil-importing and oil-exporting countries run in opposite directions. Oil price hikes have a\n
negative effect on the stock markets of oil-importing countries, while the impact is positive for the stock\n
markets of oil-exporting countries. Statistical tests support the presence of asymmetric effects only in\n
oil-importing countries. Oil price volatility has a negative impact in stock markets of oil-importing countries\n
and positive in oil-exporting countries. Moreover, oil volatility seems to be affected asymmetrically by oil\n
price changes. Oil price drops increase oil volatility more than oil price hikes do. Overall, the evidence\n
seems to support that falls in oil prices do not impact stock markets because their positive effects are offset\n
by negative effects of oil price volatility, canceling out effects for oil-importing countries.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
30 => Essec\Faculty\Model\Contribution {#2287
#_index: "academ_contributions"
#_id: "10515"
#_source: array:18 [
"id" => "10515"
"slug" => "the-aftermath-of-the-subprime-crisis-a-clustering-analysis-of-world-banking-sector"
"yearMonth" => "2013-01"
"year" => "2013"
"title" => "The aftermath of the subprime crisis - a clustering analysis of world banking sector"
"description" => "RAMOS, S. et DIAS, J. (2013). The aftermath of the subprime crisis - a clustering analysis of world banking sector. <i>Review of Quantitative Finance and Accounting</i>, 42(2), pp. 293-308."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "DIAS José"
]
]
"ouvrage" => ""
"keywords" => array:1 [
0 => "banking"
]
"updatedAt" => "2021-07-13 14:31:37"
"publicationUrl" => "https://www.researchgate.net/publication/257657734_The_aftermath_of_the_subprime_crisis_A_clustering_analysis_of_world_banking_sector"
"publicationInfo" => array:3 [
"pages" => "293-308"
"volume" => "42"
"number" => "2"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
The banking sector has been on the spotlight in both academic and policy circles since\n
the outburst of the subprime bubble. The crisis has its roots in the US, but there were spillover\n
effects around the world. We study the behavior of the banking sector of 40 countries during the\n
period 2007–2010, using a new clustering methodology. Our methodology combines regime\n
switching models in the modeling of longitudinal variations with cluster analysis that identifies\n
groups of countries with similar profiles. Our results show that although there were periods of\n
intense contagion, the impact was uneven among sample countries. The crisis had episodic effects\n
on some countries, while others had severe devaluations after the Lehman Brothers bankruptcy.\n
Finally, a small group of banking systems has plunged into a long severe crisis.
"""
"en" => """
The banking sector has been on the spotlight in both academic and policy circles since\n
the outburst of the subprime bubble. The crisis has its roots in the US, but there were spillover\n
effects around the world. We study the behavior of the banking sector of 40 countries during the\n
period 2007–2010, using a new clustering methodology. Our methodology combines regime\n
switching models in the modeling of longitudinal variations with cluster analysis that identifies\n
groups of countries with similar profiles. Our results show that although there were periods of\n
intense contagion, the impact was uneven among sample countries. The crisis had episodic effects\n
on some countries, while others had severe devaluations after the Lehman Brothers bankruptcy.\n
Finally, a small group of banking systems has plunged into a long severe crisis.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
31 => Essec\Faculty\Model\Contribution {#2288
#_index: "academ_contributions"
#_id: "10516"
#_source: array:18 [
"id" => "10516"
"slug" => "the-determinants-of-mutual-fund-performance-a-cross-country-study"
"yearMonth" => "2013-01"
"year" => "2013"
"title" => "The determinants of mutual fund performance: a cross-country study"
"description" => "RAMOS, S., FERREIRA, M., KESWANI, A. et MIGUEL, A. (2013). The determinants of mutual fund performance: a cross-country study. <i>Review of Finance (ex European Finance Review)</i>, 17(2), pp. 483-525."
"authors" => array:4 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "FERREIRA Miguel"
]
2 => array:1 [
"name" => "KESWANI Aneel"
]
3 => array:1 [
"name" => "MIGUEL António"
]
]
"ouvrage" => ""
"keywords" => array:4 [
0 => "mutual funds"
1 => "performance"
2 => "fund characteristics"
3 => "investor protection"
]
"updatedAt" => "2021-07-13 14:31:37"
"publicationUrl" => "http://dx.doi.org/10.2139/ssrn.947098"
"publicationInfo" => array:3 [
"pages" => "483-525"
"volume" => "17"
"number" => "2"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
We use a new data set to study the determinants of the performance of open–end actively\n
managed equity mutual funds in 27 countries. We find that mutual funds underperform the market\n
overall. The results show important differences in the determinants of fund performance in the USA\n
and elsewhere in the world. The US evidence of diminishing returns to scale is not a universal truth as\n
the performance of funds located outside the USA and funds that invest overseas is not negatively\n
affected by scale. Our findings suggest that the adverse scale effects in the USA are related to liquidity\n
constraints faced by funds that, by virtue of their style, have to invest in small and domestic stocks.\n
Country characteristics also explain fund performance. Funds located in countries with liquid stock\n
markets and strong legal institutions display better performance.
"""
"en" => """
We use a new data set to study the determinants of the performance of open–end actively\n
managed equity mutual funds in 27 countries. We find that mutual funds underperform the market\n
overall. The results show important differences in the determinants of fund performance in the USA\n
and elsewhere in the world. The US evidence of diminishing returns to scale is not a universal truth as\n
the performance of funds located outside the USA and funds that invest overseas is not negatively\n
affected by scale. Our findings suggest that the adverse scale effects in the USA are related to liquidity\n
constraints faced by funds that, by virtue of their style, have to invest in small and domestic stocks.\n
Country characteristics also explain fund performance. Funds located in countries with liquid stock\n
markets and strong legal institutions display better performance.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
32 => Essec\Faculty\Model\Contribution {#2289
#_index: "academ_contributions"
#_id: "10538"
#_source: array:18 [
"id" => "10538"
"slug" => "dynamic-clustering-of-energy-markets-an-extended-hidden-markov-approach"
"yearMonth" => "2014-12"
"year" => "2014"
"title" => "Dynamic clustering of energy markets: An extended hidden Markov approach"
"description" => "RAMOS, S. et DIAS, J. (2014). Dynamic clustering of energy markets: An extended hidden Markov approach. <i>Expert Systems with Applications</i>, 41(17), pp. 7722-7729."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "DIAS José"
]
]
"ouvrage" => ""
"keywords" => array:4 [
0 => "Hidden Markov models (HMMs)"
1 => "Clustering"
2 => "Time series"
3 => "Energy markets"
]
"updatedAt" => "2021-07-13 14:31:37"
"publicationUrl" => "https://doi.org/10.1016/j.eswa.2014.05.030"
"publicationInfo" => array:3 [
"pages" => "7722-7729"
"volume" => "41"
"number" => "17"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
This paper studies the synchronization of energy markets using an extended hidden Markov model that\n
captures between- and within-heterogeneity in time series by defining clusters and hidden states,\n
respectively. The model is applied to U.S. data in the period from 1999 to 2012. While oil and natural\n
gas returns are well portrayed by two volatility states, electricity markets need three additional states:\n
two transitory and one to capture a period of abnormally high volatility. Although some states are\n
common to both clusters, results favor the segmentation of energy markets as they are not in the same\n
state at the same time.
"""
"en" => """
This paper studies the synchronization of energy markets using an extended hidden Markov model that\n
captures between- and within-heterogeneity in time series by defining clusters and hidden states,\n
respectively. The model is applied to U.S. data in the period from 1999 to 2012. While oil and natural\n
gas returns are well portrayed by two volatility states, electricity markets need three additional states:\n
two transitory and one to capture a period of abnormally high volatility. Although some states are\n
common to both clusters, results favor the segmentation of energy markets as they are not in the same\n
state at the same time.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
33 => Essec\Faculty\Model\Contribution {#2290
#_index: "academ_contributions"
#_id: "10541"
#_source: array:18 [
"id" => "10541"
"slug" => "energy-price-dynamics-in-the-u-s-market-insights-from-a-heterogeneous-multi-regime-framework"
"yearMonth" => "2014-01"
"year" => "2014"
"title" => "Energy price dynamics in the U.S. market. Insights from a heterogeneous multi-regime framework"
"description" => "RAMOS, S. et DIAS, J. (2014). Energy price dynamics in the U.S. market. Insights from a heterogeneous multi-regime framework. <i>Energy</i>, 68(15), pp. 327-336."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "DIAS José"
]
]
"ouvrage" => ""
"keywords" => array:1 [
0 => "Energy prices"
]
"updatedAt" => "2021-07-13 14:31:37"
"publicationUrl" => "https://www.researchgate.net/publication/260608918_Energy_price_dynamics_in_the_US_market_Insights_from_a_heterogeneous_multi-regime_framework"
"publicationInfo" => array:3 [
"pages" => "327-336"
"volume" => "68"
"number" => "15"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
This paper makes a joint analysis of the price of oil, natural gas, and electricity in U.S. markets using a multi-regime specification\n
that captures the stylized facts of energy prices. Oil and natural gas returns have similar regime dynamics\n
and are well characterized by a high and low volatility regime.
"""
"en" => """
This paper makes a joint analysis of the price of oil, natural gas, and electricity in U.S. markets using a multi-regime specification\n
that captures the stylized facts of energy prices. Oil and natural gas returns have similar regime dynamics\n
and are well characterized by a high and low volatility regime.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
34 => Essec\Faculty\Model\Contribution {#2291
#_index: "academ_contributions"
#_id: "10567"
#_source: array:18 [
"id" => "10567"
"slug" => "the-interrelationship-between-financial-and-energy-markets"
"yearMonth" => "2014-10"
"year" => "2014"
"title" => "The Interrelationship Between Financial and Energy Markets"
"description" => "RAMOS, S. et VEIGA, H. (2014). <i>The Interrelationship Between Financial and Energy Markets</i>. Berlin: Springer."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => ""
"keywords" => array:1 [
0 => "Energy Markets"
]
"updatedAt" => "2023-01-27 14:11:40"
"publicationUrl" => "https://link.springer.com/book/10.1007/978-3-642-55382-0"
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Livres"
"en" => "Books"
]
"support_type" => array:2 [
"fr" => "Editeur"
"en" => "Publisher"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "In the last decade, energy markets have developed substantially due to the growing activity of financial investors. One consequence of this massive presence of investors is a stronger link between the hitherto segmented energy and financial markets. This book addresses some of the recent developments in the interrelationship between financial and energy markets. It aims to further the understanding of the rich interplay between financial and energy markets by presenting several empirical studies that illustrate and discuss some of the main issues on this agenda."
"en" => "In the last decade, energy markets have developed substantially due to the growing activity of financial investors. One consequence of this massive presence of investors is a stronger link between the hitherto segmented energy and financial markets. This book addresses some of the recent developments in the interrelationship between financial and energy markets. It aims to further the understanding of the rich interplay between financial and energy markets by presenting several empirical studies that illustrate and discuss some of the main issues on this agenda."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
35 => Essec\Faculty\Model\Contribution {#2292
#_index: "academ_contributions"
#_id: "10575"
#_source: array:18 [
"id" => "10575"
"slug" => "an-analysis-of-industry-regimes-synchronization-in-the-eurozone"
"yearMonth" => "2015-01"
"year" => "2015"
"title" => "An analysis of industry regimes synchronization in the Eurozone"
"description" => "DIAS, J.G. et RAMOS, S. (2015). An analysis of industry regimes synchronization in the Eurozone. <i>Journal of Common Market Studies</i>, 35(2), pp. 255-273."
"authors" => array:2 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "DIAS José G."
]
]
"ouvrage" => ""
"keywords" => array:1 [
0 => "Euro"
]
"updatedAt" => "2021-07-13 14:31:38"
"publicationUrl" => "https://www.researchgate.net/publication/265053298_An_Analysis_of_Industry_Regimes_Synchronization_in_the_Eurozone"
"publicationInfo" => array:3 [
"pages" => "255-273"
"volume" => "35"
"number" => "2"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => """
Geographical versus industrial diversification has been the subject of much debate in equity\n
investment strategies. This article revisits this issue and analyzes the contention that if national\n
factors have lost importance since the launch of the euro, then the regime dynamics of industry\n
indexes in the eurozone countries should be more similar. Results show a core group of countryindustry\n
indexes sharing the same regime dynamics, which comprise the majority of industry\n
indexes of France and Germany. After the euro launch, a group of industry indexes gained more\n
similarities with the core group of the eurozone – notably industries from Italy, Spain and Finland.\n
Nevertheless, dynamics in a small group of industries did not change. Overall, synchronization\n
between country-industry indexes has increased except for a small group of industries.
"""
"en" => """
Geographical versus industrial diversification has been the subject of much debate in equity\n
investment strategies. This article revisits this issue and analyzes the contention that if national\n
factors have lost importance since the launch of the euro, then the regime dynamics of industry\n
indexes in the eurozone countries should be more similar. Results show a core group of countryindustry\n
indexes sharing the same regime dynamics, which comprise the majority of industry\n
indexes of France and Germany. After the euro launch, a group of industry indexes gained more\n
similarities with the core group of the eurozone – notably industries from Italy, Spain and Finland.\n
Nevertheless, dynamics in a small group of industries did not change. Overall, synchronization\n
between country-industry indexes has increased except for a small group of industries.
"""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
36 => Essec\Faculty\Model\Contribution {#2293
#_index: "academ_contributions"
#_id: "10580"
#_source: array:18 [
"id" => "10580"
"slug" => "clustering-financial-time-series-new-insights-from-an-extended-hidden-markov-model"
"yearMonth" => "2015-01"
"year" => "2015"
"title" => "Clustering financial time series: New insights from an extended hidden Markov model"
"description" => "DIAS, J.G., RAMOS, S. et VERMUNT, J.K. (2015). Clustering financial time series: New insights from an extended hidden Markov model. <i>European Journal of Operational Research</i>, 243(3), pp. 852-864."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "DIAS José G."
]
2 => array:1 [
"name" => "VERMUNT Joeren K."
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Data mining"
1 => "Hidden Markov model"
2 => "Stock indexes"
3 => "Latent class model"
4 => "Regime-switching model"
]
"updatedAt" => "2021-07-13 14:31:39"
"publicationUrl" => "https://www.sciencedirect.com/science/article/abs/pii/S0377221714010595"
"publicationInfo" => array:3 [
"pages" => "852-864"
"volume" => "243"
"number" => "3"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "In recent years, large amounts of financial data have become available for analysis. We propose exploring returns from 21 European stock markets by model-based clustering of regime switching models. These econometric models identify clusters of time series with similar dynamic patterns and moreover allow relaxing assumptions of existing approaches, such as the assumption of conditional Gaussian returns. The proposed model handles simultaneously the heterogeneity across stock markets and over time, i.e., time-constant and time-varying discrete latent variables capture unobserved heterogeneity between and within stock markets, respectively. The results show a clear distinction between two groups of stock markets, each one characterized by different regime switching dynamics that correspond to different expected return-risk patterns. We identify three regimes: the so-called bull and bear regimes, as well as a stable regime with returns close to 0, which turns out to be the most frequently occurring regime. This is consistent with stylized facts in financial econometrics."
"en" => "In recent years, large amounts of financial data have become available for analysis. We propose exploring returns from 21 European stock markets by model-based clustering of regime switching models. These econometric models identify clusters of time series with similar dynamic patterns and moreover allow relaxing assumptions of existing approaches, such as the assumption of conditional Gaussian returns. The proposed model handles simultaneously the heterogeneity across stock markets and over time, i.e., time-constant and time-varying discrete latent variables capture unobserved heterogeneity between and within stock markets, respectively. The results show a clear distinction between two groups of stock markets, each one characterized by different regime switching dynamics that correspond to different expected return-risk patterns. We identify three regimes: the so-called bull and bear regimes, as well as a stable regime with returns close to 0, which turns out to be the most frequently occurring regime. This is consistent with stylized facts in financial econometrics."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
37 => Essec\Faculty\Model\Contribution {#2294
#_index: "academ_contributions"
#_id: "10584"
#_source: array:18 [
"id" => "10584"
"slug" => "correlations-between-oil-and-stock-markets-a-wavelet-based-approach"
"yearMonth" => "2015-11"
"year" => "2015"
"title" => "Correlations between oil and stock markets: A wavelet-based approach"
"description" => "MARTÍN-BARRAGÁN, B., RAMOS, S. et VEIGA, H. (2015). Correlations between oil and stock markets: A wavelet-based approach. <i>Economic Modelling</i>, 50, pp. 212-227."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "MARTÍN-BARRAGÁN Belén"
]
2 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => ""
"keywords" => array:8 [
0 => "Contagion"
1 => "Correlations"
2 => "Financial shocks"
3 => "Interdependence"
4 => "International financial markets"
5 => "Oil shocks"
6 => "Stock market returns"
7 => "Wavelets"
]
"updatedAt" => "2021-07-13 14:31:39"
"publicationUrl" => "https://www.sciencedirect.com/science/article/abs/pii/S0264999315001571"
"publicationInfo" => array:3 [
"pages" => "212-227"
"volume" => "50"
"number" => ""
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "In a global economy, shocks occurring in one market can spill over to other markets. This paper investigates the impact of oil shocks and stock market crashes on correlations between stock and oil markets. We test changes in correlations for different time scales with non-overlapping confidence intervals based on estimated wavelet correlations. Our results indicate that correlation between oil and stock markets tends to be stable in non-shock periods, around zero, but this changes during oil and financial shocks both at higher and lower frequencies. We find evidence of contagion, in particular during the 2008 and 2011 stock market falls. At low frequencies, the number of correlation breakdowns during oil shocks and stock market crashes is higher and they can be interpreted as shifts in market co-movements."
"en" => "In a global economy, shocks occurring in one market can spill over to other markets. This paper investigates the impact of oil shocks and stock market crashes on correlations between stock and oil markets. We test changes in correlations for different time scales with non-overlapping confidence intervals based on estimated wavelet correlations. Our results indicate that correlation between oil and stock markets tends to be stable in non-shock periods, around zero, but this changes during oil and financial shocks both at higher and lower frequencies. We find evidence of contagion, in particular during the 2008 and 2011 stock market falls. At low frequencies, the number of correlation breakdowns during oil shocks and stock market crashes is higher and they can be interpreted as shifts in market co-movements."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
38 => Essec\Faculty\Model\Contribution {#2295
#_index: "academ_contributions"
#_id: "10759"
#_source: array:18 [
"id" => "10759"
"slug" => "what-determines-fund-performance-persistence-international-evidence"
"yearMonth" => "2019-10"
"year" => "2019"
"title" => "What determines fund performance persistence? International evidence"
"description" => "FERREIRA, M.A., KESWANI, A., MIGUEL, A.F. et RAMOS, S. (2019). What determines fund performance persistence? International evidence. <i>Financial Review</i>, 54(4), pp. 679-708."
"authors" => array:4 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "FERREIRA Miguel A."
]
2 => array:1 [
"name" => "KESWANI Aneel"
]
3 => array:1 [
"name" => "MIGUEL Antonio F."
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "fund industry competition"
1 => "manager skill"
2 => "mutual fund persistence"
3 => "G15"
4 => "G23"
]
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => "https://doi.org/10.1111/fire.12202"
"publicationInfo" => array:3 [
"pages" => "679-708"
"volume" => "54"
"number" => "4"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "We study performance persistence across a global sample of equity mutual funds from 27 countries. In contrast to the existing U.S.‐based evidence, we find that net performance persistence is present in the majority of fund industries, suggesting that fund manager skill is commonplace rather than a rarity. Consistent with the intuition that more competition in the mutual fund industry makes remaining a winner fund less likely but keeping a loser fund at the bottom of the performance ranks more probable, we show that competitiveness explains the cross‐sectional variation in performance persistence."
"en" => "We study performance persistence across a global sample of equity mutual funds from 27 countries. In contrast to the existing U.S.‐based evidence, we find that net performance persistence is present in the majority of fund industries, suggesting that fund manager skill is commonplace rather than a rarity. Consistent with the intuition that more competition in the mutual fund industry makes remaining a winner fund less likely but keeping a loser fund at the bottom of the performance ranks more probable, we show that competitiveness explains the cross‐sectional variation in performance persistence."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
39 => Essec\Faculty\Model\Contribution {#2296
#_index: "academ_contributions"
#_id: "10878"
#_source: array:18 [
"id" => "10878"
"slug" => "limited-attention-salience-of-information-and-stock-market-activity"
"yearMonth" => "2020-05"
"year" => "2020"
"title" => "Limited Attention, Salience of Information and Stock Market Activity"
"description" => "RAMOS, S., LATOEIRO, P. et VEIGA, H. (2020). Limited Attention, Salience of Information and Stock Market Activity. <i>Economic Modelling</i>, 87, pp. 92-108."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "LATOEIRO Pedro"
]
2 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => ""
"keywords" => []
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => "https://www.researchgate.net/publication/334723204_Limited_attention_salience_of_information_and_stock_market_activity"
"publicationInfo" => array:3 [
"pages" => "92-108"
"volume" => "87"
"number" => null
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "It is now widely recognized in the literature that individuals have limited attention and that salient information plays a key role in individuals choices. We analyze the salience of two sources of information for investors: firm-specific and market. Salient information on firm and market levels is captured by 52-week highs and low indicators while investor attention is filtered by Google web searches. Results show that web searches is a predictor of volume, volatility and returns, and the effects are stronger when using market information. Our findings help to better understand the sources of information that lead individuals in making investment decisions."
"en" => "It is now widely recognized in the literature that individuals have limited attention and that salient information plays a key role in individuals choices. We analyze the salience of two sources of information for investors: firm-specific and market. Salient information on firm and market levels is captured by 52-week highs and low indicators while investor attention is filtered by Google web searches. Results show that web searches is a predictor of volume, volatility and returns, and the effects are stronger when using market information. Our findings help to better understand the sources of information that lead individuals in making investment decisions."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
40 => Essec\Faculty\Model\Contribution {#2297
#_index: "academ_contributions"
#_id: "11149"
#_source: array:18 [
"id" => "11149"
"slug" => "uncertainty-avoidance-and-mutual-funds"
"yearMonth" => "2020-12"
"year" => "2020"
"title" => "Uncertainty avoidance and mutual funds"
"description" => "KESWANI, A., MEDHAT, M., MIGUEL, A.F. et RAMOS, S. (2020). Uncertainty avoidance and mutual funds. <i>Journal of Corporate Finance</i>, 65(101748)."
"authors" => array:4 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "KESWANI Aneel"
]
2 => array:1 [
"name" => "MEDHAT Mamdouh"
]
3 => array:1 [
"name" => "MIGUEL Antonio F."
]
]
"ouvrage" => ""
"keywords" => array:6 [
0 => "Mutual funds"
1 => "Culture"
2 => "Uncertainty avoidance"
3 => "Fund flows"
4 => "Ambiguity"
5 => "Knightian uncertainty"
]
"updatedAt" => "2021-09-24 10:33:27"
"publicationUrl" => "https://doi.org/10.1016/j.jcorpfin.2020.101748"
"publicationInfo" => array:3 [
"pages" => null
"volume" => "65"
"number" => "101748"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "We study how culture influences mutual funds around the world. Uncertainty Avoidance (UA), which is related to ambiguity aversion, is negatively associated with flow-performance sensitivity, deviation from the fund benchmark, fund alpha, and the fraction of active management across the 25 countries in our sample. This is true even when controlling for an exhaustive set of fund- and country-level characteristics. We also find that a fund's deviation from its benchmark is not only affected by the UA of its domicile country but also by the UA of its fund family's country of origin. Our results highlight the importance of considering cultural characteristics, and UA in particular, when studying mutual funds across countries."
"en" => "We study how culture influences mutual funds around the world. Uncertainty Avoidance (UA), which is related to ambiguity aversion, is negatively associated with flow-performance sensitivity, deviation from the fund benchmark, fund alpha, and the fraction of active management across the 25 countries in our sample. This is true even when controlling for an exhaustive set of fund- and country-level characteristics. We also find that a fund's deviation from its benchmark is not only affected by the UA of its domicile country but also by the UA of its fund family's country of origin. Our results highlight the importance of considering cultural characteristics, and UA in particular, when studying mutual funds across countries."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
41 => Essec\Faculty\Model\Contribution {#2298
#_index: "academ_contributions"
#_id: "12428"
#_source: array:18 [
"id" => "12428"
"slug" => "star-rating-fund-flows-and-performance-predictability-evidence-from-norway"
"yearMonth" => "2022-03"
"year" => "2022"
"title" => "Star rating, fund flows and performance predictability: Evidence from Norway"
"description" => "AASHEIM, L.K., RAMOS, S. et MIGUEL, A.F. (2022). Star rating, fund flows and performance predictability: Evidence from Norway. <i>Financial Markets and Portfolio Management</i>, 36, pp. 29-56."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "AASHEIM Linn K."
]
2 => array:1 [
"name" => "MIGUEL Antonio F."
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Mutual funds"
1 => "Morningstar ratings"
2 => "Fund flows"
3 => "Fund performance"
4 => "Investor behavior"
]
"updatedAt" => "2023-11-15 09:33:20"
"publicationUrl" => "https://link.springer.com/article/10.1007/s11408-021-00390-8"
"publicationInfo" => array:3 [
"pages" => "29-56"
"volume" => "36"
"number" => ""
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "This paper studies the effect of Morningstar ratings on fund flows and fund performance predictability using a proprietary data set of equity funds from Norway. Controlling for a number of variables proxying for fund and firm visibility, we find that fund flows respond asymmetrically to changes in Morningstar ratings. Specifically, 4- and 5-star rated funds get more flows, and funds upgraded to 5-star get significantly more flows not only in the next month, but also over the following 12 months after the rating change. Downgraded funds suffer outflows, but the results only become statistically significant when fund performance falls to a 2-star rating. We also find evidence of long-term performance predictability for top-rated funds. As the mutual fund industry develops worldwide, our results suggest that Morningstar has been successful in bringing its brand name to markets outside the USA, and that Morningstar ratings are a valuable tool for helping investors make strong investment decisions."
"en" => "This paper studies the effect of Morningstar ratings on fund flows and fund performance predictability using a proprietary data set of equity funds from Norway. Controlling for a number of variables proxying for fund and firm visibility, we find that fund flows respond asymmetrically to changes in Morningstar ratings. Specifically, 4- and 5-star rated funds get more flows, and funds upgraded to 5-star get significantly more flows not only in the next month, but also over the following 12 months after the rating change. Downgraded funds suffer outflows, but the results only become statistically significant when fund performance falls to a 2-star rating. We also find evidence of long-term performance predictability for top-rated funds. As the mutual fund industry develops worldwide, our results suggest that Morningstar has been successful in bringing its brand name to markets outside the USA, and that Morningstar ratings are a valuable tool for helping investors make strong investment decisions."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
42 => Essec\Faculty\Model\Contribution {#2299
#_index: "academ_contributions"
#_id: "12984"
#_source: array:18 [
"id" => "12984"
"slug" => "linvestissement-responsable-faconner-lavenir-de-la-finance"
"yearMonth" => "2021-06"
"year" => "2021"
"title" => "L’investissement responsable : façonner l’avenir de la finance"
"description" => "DECLERCK, F. et RAMOS, S. (2021). L’investissement responsable : façonner l’avenir de la finance. <i>ESSEC Knowledge</i>."
"authors" => array:2 [
0 => array:3 [
"name" => "DECLERCK Francis"
"bid" => "B00000143"
"slug" => "declerck-francis"
]
1 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
]
"ouvrage" => ""
"keywords" => array:1 [
0 => "(finance responsible – finance durable)"
]
"updatedAt" => "2023-01-27 14:06:36"
"publicationUrl" => "https://knowledge.essec.edu/media/uploads/articles/together_transformer_le_monde.pdf"
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Articles ou vidéos de vulgarisation"
"en" => "Press article, video or other popular media"
]
"support_type" => array:2 [
"fr" => "Presse"
"en" => "Press"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "« Faire le bien et le faire bien » est le nouveau mantra de la finance. Après des années et des années d’accumulation de pratiques d’investissement risquées et sans valeur ajoutée, de prise de risques excessifs et de charge pour les contribuables, le secteur de la finance semble revenir aux fondamentaux, à savoir l’allocation efficace du capital pour promouvoir le développement durable de l’économie."
"en" => "“Doing well while doing good” is the new mantra in finance. After years and years of piling up risky and no value-added investment practices, taking excessive risks, and being a burden for taxpayers, the finance sector seems to be back to basics, the efficient allocation of capital to promote the sustainable development of the economy"
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
43 => Essec\Faculty\Model\Contribution {#2300
#_index: "academ_contributions"
#_id: "12985"
#_source: array:18 [
"id" => "12985"
"slug" => "sustainable-investing-shaping-the-future-of-finance"
"yearMonth" => "2021-06"
"year" => "2021"
"title" => "Sustainable investing: shaping the future of finance"
"description" => "DECLERCK, F. et RAMOS, S. (2021). Sustainable investing: shaping the future of finance. ESSEC Knowledge, France."
"authors" => array:2 [
0 => array:3 [
"name" => "DECLERCK Francis"
"bid" => "B00000143"
"slug" => "declerck-francis"
]
1 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
]
"ouvrage" => ""
"keywords" => array:3 [
0 => "(sustainable investing"
1 => "sustainable finance"
2 => "responsible finance)"
]
"updatedAt" => "2023-01-27 01:00:43"
"publicationUrl" => "https://knowledge.essec.edu/media/uploads/articles/building_a_better_world_together_ek_review.pdf"
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Rapports techniques / Livres blancs"
"en" => "Technical reports / White papers"
]
"support_type" => array:2 [
"fr" => "Presse"
"en" => "Press"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "« Faire le bien et le faire bien » est le nouveau mantra de la finance. Après des années et des années d’accumulation de pratiques d’investissement risquées et sans valeur ajoutée, de prise de risques excessifs et de charge pour les contribuables, le secteur de la finance semble revenir aux fondamentaux, à savoir l’allocation efficace du capital pour promouvoir le développement durable de l’économie"
"en" => ""Doing well while doing good” is the new mantra in finance. After years and years of piling up risky and no value-added investment practices, taking excessive risks, and being a burden for taxpayers, the finance sector seems to be back to basics, the efficient allocation of capital to promote the sustainable development of the economy"
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
44 => Essec\Faculty\Model\Contribution {#2301
#_index: "academ_contributions"
#_id: "14018"
#_source: array:18 [
"id" => "14018"
"slug" => "esg-factors-or-conventional-factors-are-esg-factors-truly-unique"
"yearMonth" => "2022-12"
"year" => "2022"
"title" => "ESG Factors or Conventional Factors: Are ESG Factors Truly Unique?"
"description" => "COVACHEV, S., MARTEL, J. et RAMOS, S. (2022). ESG Factors or Conventional Factors: Are ESG Factors Truly Unique? Dans: 2022 International Conference on Sustainibility, Environment and Social Transition in Economics and Finance. Versailles."
"authors" => array:3 [
0 => array:3 [
"name" => "MARTEL Jocelyn"
"bid" => "B00000350"
"slug" => "martel-jocelyn"
]
1 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
2 => array:1 [
"name" => "COVACHEV Svetoslav"
]
]
"ouvrage" => "2022 International Conference on Sustainibility, Environment and Social Transition in Economics and Finance"
"keywords" => []
"updatedAt" => "2023-11-29 16:13:56"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
45 => Essec\Faculty\Model\Contribution {#2302
#_index: "academ_contributions"
#_id: "14162"
#_source: array:18 [
"id" => "14162"
"slug" => "divergence-in-mutual-fund-sustainability-labelling"
"yearMonth" => "2022-12"
"year" => "2022"
"title" => "Divergence in Mutual Fund Sustainability Labelling"
"description" => "RAMOS, S., CORTEZ, M.C. et SILVA, F. (2022). Divergence in Mutual Fund Sustainability Labelling. Dans: 2022 International Conference on Sustainability, Environment, and Social Transition in Economics and Finance. Versailles."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CORTEZ Maria Céu"
]
2 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => "2022 International Conference on Sustainability, Environment, and Social Transition in Economics and Finance"
"keywords" => []
"updatedAt" => "2024-07-19 10:53:07"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
46 => Essec\Faculty\Model\Contribution {#2303
#_index: "academ_contributions"
#_id: "14582"
#_source: array:18 [
"id" => "14582"
"slug" => "do-sustainability-signals-diverge-an-analysis-of-labeling-schemes-for-socially-responsible-investments"
"yearMonth" => "2024-07"
"year" => "2024"
"title" => "Do Sustainability Signals Diverge? An Analysis of Labeling Schemes for Socially Responsible Investments"
"description" => "RAMOS, S., CÉU CORTEZ, M. et SILVA, F. (2024). Do Sustainability Signals Diverge? An Analysis of Labeling Schemes for Socially Responsible Investments. <i>Business and Society</i>, 63(6), pp. 1380-1425."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "CÉU CORTEZ Maria"
]
2 => array:1 [
"name" => "SILVA Florinda"
]
]
"ouvrage" => ""
"keywords" => array:9 [
0 => "asymmetric information"
1 => "government"
2 => "labeling"
3 => "nonprofit organizations"
4 => "sustainable finance"
5 => "Disclosure Regulation"
6 => "SFDR"
7 => "socially responsible investments"
8 => "third-party certifications"
]
"updatedAt" => "2024-10-31 13:51:19"
"publicationUrl" => "https://journals.sagepub.com/doi/10.1177/00076503231204613#con2"
"publicationInfo" => array:3 [
"pages" => "1380-1425"
"volume" => "63"
"number" => "6"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "This article investigates whether sustainability labels for mutual funds in Europe provide consistent signals regarding funds’ sustainable characteristics. Specifically, we assess the alignment of signals conveyed by third-party and self-declared labels. Among the first typology, we consider labels sponsored by government and nonprofit organizations (GNPOs) alongside Environmental, Social, and Governance (ESG) ratings from commercial data vendors. The latter category includes the Sustainable Finance Disclosure Regulation (SFDR) classification and an ESG-related name. Our findings indicate that equity funds with GNPO labels are more likely to exhibit top-tier ESG ratings and alignment with self-declared sustainability signals, namely Article 9 of SFDR and fund names. Furthermore, holding government and multiple GNPO labels is linked to other signals indicating higher sustainability standards. In addition, funds tend to experience an improvement in Morningstar globes after receiving a GNPO label, consistent with GNPO labels signaling funds of the high-quality type. The results regarding label alignment in fixed-income funds are less conclusive. Our findings underscore the need for credible signals in view of the growing number of sustainability labels available to investors."
"en" => "This article investigates whether sustainability labels for mutual funds in Europe provide consistent signals regarding funds' sustainable characteristics. Specifically, we assess the alignment of signals conveyed by third-party and self-declared labels. Among the first typology, we consider labels sponsored by government and nonprofit organizations (GNPOs) alongside Environmental, Social, and Governance (ESG) ratings from commercial data vendors. The latter category includes the Sustainable Finance Disclosure Regulation (SFDR) classification and an ESG-related name. Our findings indicate that equity funds with GNPO labels are more likely to exhibit top-tier ESG ratings and alignment with self-declared sustainability signals, namely article 9 of SFDR and fund names. Furthermore, holding government and multiple GNPO labels is linked to other signals indicating higher sustainability standards. Additionally, funds tend to experience an improvement in Morningstar globes after receiving a GNPO label, consistent with GNPO labels signaling funds of the high-quality type. The results regarding label alignment in fixed-income funds are less conclusive. Our findings underscore the need for credible signals in view of the growing number of sustainability labels available to investors."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
47 => Essec\Faculty\Model\Contribution {#2304
#_index: "academ_contributions"
#_id: "14633"
#_source: array:18 [
"id" => "14633"
"slug" => "investigating-the-impact-of-consumption-distribution-on-crra-estimation-quantile-ccapm-based-approach"
"yearMonth" => "2024-01"
"year" => "2024"
"title" => "Investigating the impact of consumption distribution on CRRA estimation: Quantile-CCAPM-based approach"
"description" => "RAMOS, S., TAAMOUTI, A. et VEIGA, H. (2024). Investigating the impact of consumption distribution on CRRA estimation: Quantile-CCAPM-based approach. <i>Studies in Nonlinear Dynamics and Econometrics</i>, In press."
"authors" => array:3 [
0 => array:3 [
"name" => "RAMOS Sofia"
"bid" => "B00683001"
"slug" => "ramos-sofia"
]
1 => array:1 [
"name" => "TAAMOUTI Abderrahim"
]
2 => array:1 [
"name" => "VEIGA Helena"
]
]
"ouvrage" => ""
"keywords" => array:6 [
0 => "CCAPM"
1 => "consumption volatility"
2 => "downside risk aversion"
3 => "quantile-based Euler equation"
4 => "risk aversion"
5 => "stochastic volatility"
]
"updatedAt" => "2024-01-15 13:44:09"
"publicationUrl" => "https://www.degruyter.com/document/doi/10.1515/snde-2023-0005/html"
"publicationInfo" => array:3 [
"pages" => ""
"volume" => "In press"
"number" => ""
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "Using quantile maximization decision theory, this paper considers a quantile-based Euler equation that states that the asset price is a function of the quantiles of the payoff, consumption growth, the stochastic discount factor, risk aversion, and the distribution of the consumption growth rate. We use a more general distribution assumption (log-elliptical distributions) than the log-normality of the consumption growth rate assumed in the literature. The simulation results show that: (1) the higher the downside risk aversion, the lower the constant relative risk aversion; (2) the heavier the tails of the Student-t distribution, the higher the risk aversion for each level of downside risk aversion; and (3) the curve of the relationship between risk aversion and downside risk aversion shifts upward when the normality assumption is dropped, and the magnitude of this shift is high even for high degrees of freedom of the Student-t distribution. Our results suggest that using normally distributed errors to model stock returns and consumption growth rates could lead to an underestimation of the risk aversion coefficient."
"en" => "Using quantile maximization decision theory, this paper considers a quantile-based Euler equation that states that the asset price is a function of the quantiles of the payoff, consumption growth, the stochastic discount factor, risk aversion, and the distribution of the consumption growth rate. We use a more general distribution assumption (log-elliptical distributions) than the log-normality of the consumption growth rate assumed in the literature. The simulation results show that: (1) the higher the downside risk aversion, the lower the constant relative risk aversion; (2) the heavier the tails of the Student-t distribution, the higher the risk aversion for each level of downside risk aversion; and (3) the curve of the relationship between risk aversion and downside risk aversion shifts upward when the normality assumption is dropped, and the magnitude of this shift is high even for high degrees of freedom of the Student-t distribution. Our results suggest that using normally distributed errors to model stock returns and consumption growth rates could lead to an underestimation of the risk aversion coefficient."
]
"authors_fields" => array:2 [
"fr" => "Finance"
"en" => "Finance"
]
"indexedAt" => "2024-12-22T02:21:49.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 5.483522
+"parent": null
}
]
"avatar" => "https://faculty.essec.edu/wp-content/uploads/avatars/B00683001.jpg"
"contributionCounts" => 48
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0 => "<a href="https://orcid.org/0000-0001-6089-573X" target="_blank">ORCID</a>"
1 => "<a href="https://scholar.google.com/citations?user=bW3fYF8AAAAJ" target="_blank">Google scholar</a>"
]
"docTitle" => "Sofia RAMOS"
"docSubtitle" => "Professeur"
"docDescription" => "Département: Finance<br>Campus de Cergy"
"docType" => "cv"
"docPreview" => "<img src="https://faculty.essec.edu/wp-content/uploads/avatars/B00683001.jpg"><span><span>Sofia RAMOS</span><span>B00683001</span></span>"
"academ_cv_info" => ""
]
#_index: "academ_cv"
+lang: "fr"
+"_type": "_doc"
+"_score": 5.0369525
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}
