Online price competition within and between heterogeneous retailer groups

This study presents a model of price competition in a market for a homogenous good with many asymmetrically positioned retailers, a typical example of which could be the online markets for books, music, movies or software. These markets are highly competitive oligopolies served by hundreds of active retailers and that have been affected by information technologies such as price comparison engines and shopping bots. In these markets, firms can only identify broad group memberships to clusters of firms, and compete within and across clusters based on this information, due to the incompleteness of information on the characteristics of firms. The characteristics of the firms that shape their competitive behavior are their established loyal segment sizes and potential comparison shopper segment sizes. To analyze such markets, we develop and solve a static game of price competition in an asymmetric oligopoly with numerous clusters of firms. In our analysis we see that the firms with the smallest loyal segment sizes and the largest switcher segment sizes engage in a fierce price competition while the members of all other groups prefer to price at their reservation price points. We also test and provide empirical support for our model predictions using pricing data on three categories. Our data set contains prices on 112 printers from 20 retailers, 95 cameras from 53 retailers and 1388 books from 15 retailers.

[1]  Cenk Kocas,et al.  Evolution of Prices in Electronic Markets Under Diffusion of Price-Comparison Shopping , 2002, J. Manag. Inf. Syst..

[2]  R. Lal.  Price Promotions: Limiting Competitive Encroachment , 1990 .

[3]  S. Dutta,et al.  Asymmetric Store Positioning and Promotional Advertising Strategies: Theory and Evidence , 2002 .

[4]  Eric K. Clemons,et al.  Price Dispersion and Differentiation in Online Travel: An Empirical Investigation , 2002, Manag. Sci..

[5]  Robert C. Blattberg,et al.  Price-Induced Patterns of Competition , 1989 .

[6]  R. Lal,et al.  The Effects of Brand Loyalty on Competitive Price Promotional Strategies , 1990 .

[7]  Robert J. Kauffman,et al.  ANALYZING COMPETITION AND COLLUSION STRATEGIES IN ELECTRONIC MARKETPLACES WITH INFORMATION ASYMMETRY , 2000 .

[8]  K. Judd,et al.  EQUILIBRIUM PRICE DISPERSION , 1983 .

[9]  Robert C. Blattberg,et al.  Interactive Marketing: Exploiting the Age of Addressability , 1991 .

[10]  S. Balasubramanian.  Mail Versus Mall: a Strategic Analysis of Competition Between Direct Marketers and Conventional Retailers , 1998 .

[11]  Ramayya Krishnan,et al.  Prices and Price Dispersion on the Web: Evidence from the Online Book Industry , 2001 .

[12]  C. Narasimhan.  Competitive Promotional Strategies , 1988 .

[13]  K ClemonsEric,et al.  Price Dispersion and Differentiation in Online Travel , 2002 .

[14]  Michael R. Baye,et al.  Information Gatekeepers on the Internet and the Competitiveness of Homogeneous Product Markets , 2001 .

[15]  Z. John Zhang,et al.  Individual Marketing with Imperfect Targetability , 2000 .

[16]  Austan Goolsbee.  Competition in the Computer Industry: Online versus Retail , 2001 .

[17]  Erik Brynjolfsson,et al.  Consumer Decision-Making at an Internet Shopbot , 2001 .

[18]  H. Varian.  A Model of Sales , 1980 .

[19]  K. Moorthy,et al.  Product and Price Competition in a Duopoly , 1988 .

[20]  Pradeep K. Chintagunta,et al.  Empirical Analysis of Competitive Product Line Pricing Decisions: Lead, Follow, or Move Together? , 1996 .

[21]  Ramayya Krishnan,et al.  Retail Strategies on the Web: Price and Non-Price Competition in the Online Book Industry , 2003 .

[22]  J. Stiglitz,et al.  Bargains and Ripoffs: A Model of Monopolistically Competitive Price Dispersion , 1977 .

[23]  Erik Brynjolfsson,et al.  Frictionless Commerce? A Comparison of Internet and Conventional Retailers , 2000 .