Immanent to the retail business is its multiproduct nature. In a recent issue of this journal Richards (2006) introduces a multiproduct model for perishable food items. Richards concludes that depth and breadth of sales are complementary marketing tools to increase store sales. He also provides...

We study the existence of price distributions and the intra-distribution dynamics for 10 food products across 131 retail stores in Germany for a time period of 43 weeks. Based upon Varian's (1980) model of sales, we aim at investigating whether the position of stores within the cross-sectional...