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Entry and Vertical Differentiation

  • Bergemann, Dirk
  • Valimaki, Juuso

This paper analyzes the entry of new products into vertically differentiated markets where an entrant and an incumbent compete in quantities. The value of the new product is initially uncertain and new information is generated through purchases in the market. We derive the (unique) Markov perfect equilibrium of the infinite horizon game under the strong long run average payoff criterion. The qualitative features of the optimal entry strategy are shown to depend exclusively on the relative ranking of established and new products based on current beliefs. Superior products are launched relatively slowly and at high initial prices whereas substitutes for existing products are launched aggressively at low initial prices. The robustness of these results with respect to different model specifications is discussed.

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Article provided by Elsevier in its journal Journal of Economic Theory.

Volume (Year): 106 (2002)
Issue (Month): 1 (September)
Pages: 91-125

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Handle: RePEc:eee:jetheo:v:106:y:2002:i:1:p:91-125
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/622869

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  2. Aghion, P. & Bolton, P. & Harris, C. & Jullien, B., 1990. "Optimal Learning By Experimentation," DELTA Working Papers 90-10, DELTA (Ecole normale supérieure).
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  4. Paul R. Milgrom & John Roberts, 1984. "Price and Advertising Signals of Product Quality," Cowles Foundation Discussion Papers 709, Cowles Foundation for Research in Economics, Yale University.
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  16. Kyle Bagwell & Michael Riordan, 1988. "High and Declining Prices Signal Product Quality," Discussion Papers 808, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  17. Judd, Kenneth L & Riordan, Michael H, 1994. "Price and Quality in a New Product Monopoly," Review of Economic Studies, Wiley Blackwell, vol. 61(4), pages 773-89, October.
  18. Ericson, Richard & Pakes, Ariel, 1995. "Markov-Perfect Industry Dynamics: A Framework for Empirical Work," Review of Economic Studies, Wiley Blackwell, vol. 62(1), pages 53-82, January.
  19. Dutta, P.K., 1991. "What Do Discounted Optima Converge To? A Theory of Discount Rate Asymptotics in Economic Models," RCER Working Papers 264, University of Rochester - Center for Economic Research (RCER).
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