During 1980s in the United States the grocery stores and food units of supermarkets adapted various market strategies, and developed different types of merchandising concepts. These concepts can be classified into seven; Conventional Supermarket, Warehouse Store, Super Warehouse Store, Limited Assortment Store, Wholesale Club Store and Convenience Store. Each of the merchandising concepts has played an important part in the development of food retailing in the United States. Discounting, warehouse store, the limited assortment store, and the wholesale club store represent merchandising strategies that are based primarily on price competition. The conventional supermarket and the super store embrace the concept of one-stop shopping with some customer services. Convenience stores have found success by emphasizing service and convenience at a slightly higher price livel than conventional supermarkets. Each type of retail operation attempts to serve a particular consumer need, and each can result in satisfactory profits. These differing retail concepts provide the framework for the merchandising philosophies and methods that are described in this paper.