Store and store format loyalty measures based on budget allocation

In highly competitive environments, such as retail markets, characterized by a growing heterogeneity of demand and the proliferation of new retail formats, cross-shopping behavior between stores and formats is becoming increasingly common. This process makes customer loyalty a key strategic challenge for retailers that want to consolidate their position within the market. To contribute to the analysis and comprehension of this reality, the authors propose and assess different objective indicators of store loyalty, store format loyalty, and intra-format store loyalty based on budget allocation. Specifically, they analyze the role of retail format in observable loyalty patterns in a market. Through an empirical analysis of grocery purchase patterns of a sample of 580 Spanish households, the authors find that diverse objective loyalty indicators based on budget allocations provide very similar information from a practical point of view. They also find that consumers' regular use of various formats (specifically, supermarkets, hypermarkets, and discount stores) for their purchases explain observed disloyalty better than does purchasing in several stores within these formats. The observed patterns reveal that retail formats define differentiated store profiles that relate to the benefits sought in different purchase situations. (C) 2007 Elsevier Inc. All rights reserved.