Grocery retailing is undergoing rapid changes. New store formats and market channels, the entry of additional large … preferences. Retailers are increasingly competing in both price and variety. The question arises: how do product assortments … to quantify the assortment-depth elasticity of price in online retailing, and the magnitude of assortment depth at which …

This paper examines the relationship of 1987 retail grocery prices to supermarket sales concentration across 95 U … separate prices by type of grocery item. We find that the concentration-price relationship is sensitive to item type: Positive … find that small grocery stores provide no grocery price competition for supermarkets. However, branded grocery prices are …