The effects of store brand loyalty on store loyalty: evidence from the Spanish market

This article studies the impact of retailers' store brands on store performance. Specifically, we analyze the extent to which store brands contribute to store loyalty. On the one hand, a positive relationship between customers' familiarity with and loyalty to the retailer's own brand and customers' loyalty to the retailer should result from the potential of the store brand to differentiate the retailer. On the other hand, an negative relationship between customers' familiarity with and loyalty to the retailer's own brand and customers' loyalty to the retailer may result from store brands' association with more price-sensitive customers, who have a higher propensity to buy at different stores that offer the best bargain. The empirical analysis, conducted with a sample of customers of leading retailers in the Spanish detergent market, shows no relationship between store brand loyalty and loyalty to the retailer. Although the purchase of store brands relates positively to higher loyalty to the retailer, this relationship deteriorates with the degree of exclusivity of store brands within the customer's shopping basket.