Essec\Faculty\Model\Contribution {#2216 ▼
#_index: "academ_contributions"
#_id: "13712"
#_source: array:26 [
"id" => "13712"
"slug" => "13712-efficient-multipowers"
"yearMonth" => "2018-06"
"year" => "2018"
"title" => "Efficient Multipowers"
"description" => "KOLOKOLOV, A. et RENO, R. (2018). Efficient Multipowers. <i>Journal of Financial Econometrics</i>, 16(4), pp. 629-659. 
KOLOKOLOV, A. et RENO, R. (2018). Efficient Multipowers. <i>Journal of Financial Econometrics</i>, 1 "
"authors" => array:2 [
0 => array:3 [
"name" => "RENO Roberto"
"bid" => "B00798674"
"slug" => "reno-roberto"
]
1 => array:1 [
"name" => "KOLOKOLOV Aleksey"
]
]
"ouvrage" => ""
"keywords" => array:1 [
0 => "Financial markets"
]
"updatedAt" => "2023-02-07 01:00:47"
"publicationUrl" => "https://doi.org/10.1093/jjfinec/nbx018"
"publicationInfo" => array:3 [
"pages" => "629-659"
"volume" => "16"
"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" => "Multipower estimators, widespread for their robustness to the presence of jumps, are also useful for reducing the estimation error of integrated volatility powers even in the absence of jumps. Optimizing linear combinations of multipowers can indeed drastically reduce the variance with respect to traditional estimators. In the case of quarticity, we also prove that the optimal combination is a nearly efficient estimator, being arbitrarily close to the nonparametric efficiency bound as the number of consecutive returns employed diverges. We provide guidance on how to select the optimal number of consecutive returns to minimize mean square error. The implementation on U.S. stock prices corroborates our theoretical findings and further shows that our proposed quarticity estimator noticeably reduces the number of detected jumps, and improves the quality of volatility forecasts. Multipower estimators, widespread for their robustness to the presence of jumps, are also useful for "
"en" => "Multipower estimators, widespread for their robustness to the presence of jumps, are also useful for reducing the estimation error of integrated volatility powers even in the absence of jumps. Optimizing linear combinations of multipowers can indeed drastically reduce the variance with respect to traditional estimators. In the case of quarticity, we also prove that the optimal combination is a nearly efficient estimator, being arbitrarily close to the nonparametric efficiency bound as the number of consecutive returns employed diverges. We provide guidance on how to select the optimal number of consecutive returns to minimize mean square error. The implementation on U.S. stock prices corroborates our theoretical findings and further shows that our proposed quarticity estimator noticeably reduces the number of detected jumps, and improves the quality of volatility forecasts. Multipower estimators, widespread for their robustness to the presence of jumps, are also useful for "
]
"authors_fields" => array:2 [
"fr" => "Systèmes d'Information, Data Analytics et Opérations"
"en" => "Information Systems, Data Analytics and Operations"
]
"indexedAt" => "2025-04-03T21:21:42.000Z"
"docTitle" => "Efficient Multipowers"
"docSurtitle" => "Journal articles"
"authorNames" => "<a href="/cv/reno-roberto">RENO Roberto</a>, KOLOKOLOV Aleksey"
"docDescription" => "<span class="document-property-authors">RENO Roberto, KOLOKOLOV Aleksey</span><br><span class="document-property-authors_fields">Information Systems, Data Analytics and Operations</span> | <span class="document-property-year">2018</span> <span class="document-property-authors">RENO Roberto, KOLOKOLOV Aleksey</span><br><span class="docum "
"keywordList" => "<a href="#">Financial markets</a>"
"docPreview" => "<b>Efficient Multipowers</b><br><span>2018-06 | Journal articles </span>"
"docType" => "research"
"publicationLink" => "<a href="https://doi.org/10.1093/jjfinec/nbx018" target="_blank">Efficient Multipowers</a>"
]
+lang: "en"
+"_type": "_doc"
+"_score": 8.564305
+"parent": null
}
