This research paper is a descriptive analysis of grocery store shopping patterns. The relevance of store loyalty as a segmentation criteria is questioned. Then, several operationalisations of store loyalty (composite versus partial indexes) are compared based on a large French single source data base.
VOLLE, P. and DESMET, P. (1994). Fréquentation des points de vente : analyse descriptive préliminaire. ESSEC Business School.