Oligopolistic Pricing with Online Search
Georgia Institute of Technology - Scheller College of Business
University of Texas at Dallas - Jindal School of Management
Andrew B. Whinston
University of Texas at Austin - Department of Information, Risk and Operations Management
May 5, 2009
Journal of Management Information Systems, Vol. 27, No. 3, pp. 111-141, 2011
McCombs Research Paper Series IROM-03-10
We set up a game-theoretic model to examine the oligopolistic price competition, considering two features of online search: the existence of a common search ordering and shoppers who have non-positive search cost. We find that in equilibrium firms set their prices probabilistically rather than deterministically, and different firms follow different price distributions. The equilibrium pricing pattern exhibits an interesting local-competition feature, in which direct price competition occurs only between firms adjacent to each other. Further, we incorporate consumers' search strategies into the model so that both search order and stopping rules are determined rationally by consumers. We show that similar patterns may continue to hold in the fully rational framework when consumers have higher inspection costs for inferior positions.
Number of Pages in PDF File: 41
Keywords: Pricing, Search, Oligopolistic Competition, Price Dispersion, Local CompetitionAccepted Paper Series
Date posted: April 11, 2010 ; Last revised: June 23, 2011
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