Discount retailers and "category killers" are believed to be so detrimental to the existing retail environment that many communities have fought their entry through zoning and other regulations. However, the authors suggest that the patterns of competition among different types of retailers are more complex than previously believed. To understand this complexity better, they explore the cross-sectional relationship of competition and retail structure for different types of retailers. Contrary to popular opinion, the findings suggest a positive association between the number of larger stores and the number and size of smaller stores. This implies a mutually beneficial relationship among different types of retailers rather than an overwhelming competitive advantage for larger stores.The mass merchandisers of retailing-Wal-Mart, Kmart and Target-and categorykillers-Toys 'R Us, Home Depot and Blockbuster Video-are infiltrating small-town America and beyond. These price choppers, which practice a scorched-earth policyof retailing, are puttinga lot of smaller retailers in danger-if not out of business (Me-Cune 1994, p. 10).T he preceding quotation represents the popular view of the entry of larger retailers into a market. This view is expressed through the trade, academic, and popular presses, with Wal-Mart and large category killers taking the brunt of the attack. However, several theories and anecdotal evidence suggest the opposite. Although the main thrust of this attack relates to the effect of larger retail entrants on small stores, there is ample evidence that retail competition affects everyone in the distribution channel.Channel members that previously largely controlled the distribution channel now need strategies for dealing with a changing retail structure. For example, Levi Strauss and Company announced that it would expand its distribution to mass marketers and limit supply to smaller stores ("It's Back to Basics for Levi's" 1982). Other manufacturers, such as Procter & Gamble, PepsiCo, and H.I. Heinz, are having difficulty dealing with private branding by large discount stores and supermarkets (Sellers 1993). Likewise, wholesalers suffer when large retail entrants bypass local wholesale channels.Retail structure also directly involves consumers. Consumers tailor their shopping habits to reflect both time needs Chip E.Miller isAssociate Professor ofMarketing, School ofBusiness, Pacific Lutheran University. JamesReardon is Norwest Professor ofMarketing, Kenneth W. Monfort College of Business, University of Northern Colorado. Denny E. McCorkle is Professor ofMarketing, Southwest Missouri StateUniversity. Theauthors thank Chuck Ingene andthe anonymous JM reviewers for their extensive comments and suggestions on previous drafts ofthis article.