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Pricing, Product Diversity and Search Costs: A Bertrand-Chamberlin-Diamond Model

  • Anderson, S.P.
  • Renault, R.

Bertrand argued that price would be driven down to marginal cost even with only two firms in the market. Chamberlin, by introducing product differentiation, argued that price will exceed marginal cost even when there are many firms. Thus product differentiation resolves the "Bertrand Paradox". Diamond argued that firms would set monopoly prices in the Bertrand context if consumers face search costs.

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Paper provided by Toulouse - GREMAQ in its series Papers with number 97.481.

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Length: 25 pages
Date of creation: 1997
Date of revision:
Handle: RePEc:fth:gremaq:97.481
Contact details of provider: Postal: GREMAQ, Universite de Toulouse I Place Anatole France 31042 - Toulouse CEDEX France.
Phone: 05.61.62.85.56
Fax: 05 61 22 55 63
Web page: http://www-gremaq.univ-tlse1.fr/
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  1. Deneckere, Raymond J & Rothschild, Michael, 1992. "Monopolistic Competition and Preference Diversity," Review of Economic Studies, Wiley Blackwell, vol. 59(2), pages 361-73, April.
  2. Diamond, Peter A., 1971. "A model of price adjustment," Journal of Economic Theory, Elsevier, vol. 3(2), pages 156-168, June.
  3. Anderson, Simon P & Renault, Regis, 2000. "Consumer Information and Firm Pricing: Negative Externalities from Improved Information," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 41(3), pages 721-42, August.
  4. Perloff, Jeffrey M & Salop, Steven C, 1985. "Equilibrium with Product Differentiation," Review of Economic Studies, Wiley Blackwell, vol. 52(1), pages 107-20, January.
  5. ANDERSON, Simon P. & DE PALMA, André & NESTEROV, Yurii, 1994. "Oligopolistic Competition and the Optimal Provision of Products," CORE Discussion Papers 1994034, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  6. Kohn, Meir G. & Shavell, Steven, 1974. "The theory of search," Journal of Economic Theory, Elsevier, vol. 9(2), pages 93-123, October.
  7. Wolinsky, Asher, 1984. "Product Differentiation with Imperfect Information," Review of Economic Studies, Wiley Blackwell, vol. 51(1), pages 53-61, January.
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