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Firm-Specific Information, Product Differentiation, and Industry Equilibrium

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  • Perloff, Jeffrey M
  • Salop, Steven C

Abstract

Where consumers have imperfect i nformation about specific firms' prices and lack information about the market, f irms have informational market power. In general, improving the consumers' infor mation about each firm's price will not necessarily lower the average market pri ce. The authors show however that certain types ofimprovements will lower price. Moreover a reduction in barriers to entry (e.g., capital costs) will lower pri ce, holding information constant. Where a significant number (but not all), cons umers have perfect information, single-price equilibria are impossible. Copyright 1986 by Royal Economic Society.

Suggested Citation

  • Perloff, Jeffrey M & Salop, Steven C, 1986. "Firm-Specific Information, Product Differentiation, and Industry Equilibrium," Oxford Economic Papers, Oxford University Press, vol. 38(0), pages 184-202, Suppl. No.
  • Handle: RePEc:oup:oxecpp:v:38:y:1986:i:0:p:184-202
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    References listed on IDEAS

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    1. Stiglitz, J E, 1979. "Equilibrium in Product Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 69(2), pages 339-345, May.
    2. Steven Salop & Joseph Stiglitz, 1977. "Bargains and Ripoffs: A Model of Monopolistically Competitive Price Dispersion," Review of Economic Studies, Oxford University Press, vol. 44(3), pages 493-510.
    3. Stiglitz, Joseph E, 1975. "The Theory of "Screening," Education, and the Distribution of Income," American Economic Review, American Economic Association, vol. 65(3), pages 283-300, June.
    4. Diamond, Peter A., 1971. "A model of price adjustment," Journal of Economic Theory, Elsevier, vol. 3(2), pages 156-168, June.
    5. Seade, Jesus K, 1980. "On the Effects of Entry," Econometrica, Econometric Society, vol. 48(2), pages 479-489, March.
    6. Louis L. Wilde & Alan Schwartz, 1979. "Equilibrium Comparison Shopping," Review of Economic Studies, Oxford University Press, vol. 46(3), pages 543-553.
    7. George A. Akerlof, 1970. "The Market for "Lemons": Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, Oxford University Press, vol. 84(3), pages 488-500.
    8. Michael Spence, 1973. "Job Market Signaling," The Quarterly Journal of Economics, Oxford University Press, vol. 87(3), pages 355-374.
    9. Robert Wilson, 1977. "A Bidding Model of Perfect Competition," Review of Economic Studies, Oxford University Press, vol. 44(3), pages 511-518.
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    Cited by:

    1. repec:eee:indorg:v:54:y:2017:i:c:p:175-191 is not listed on IDEAS
    2. Gladys López-Acevedo, 1997. "Quantal response equilibria for posted offer-markets," Estudios Económicos, El Colegio de México, Centro de Estudios Económicos, vol. 12(2), pages 95-131.
    3. Thomas A Abbott III, 1992. "Price Dispersion In U.S. Manufacturing: Implications For The Aggregation Of Products And Firms," Working Papers 92-3, Center for Economic Studies, U.S. Census Bureau.
    4. Kathy Baylis & Jeffrey Perloff, 2002. "Price Dispersion on the Internet: Good Firms and Bad Firms," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 21(3), pages 305-324, November.
    5. Carlton, Dennis W. & Perloff, Jeffrey M., 1989. "The Economics of Information," Research Reports 25156, University of Connecticut, Food Marketing Policy Center.
    6. Muck, Johannes, 2016. "Tariff-mediated network effects with incompletely informed consumers," DICE Discussion Papers 210, University of Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    7. Ran Spiegler, 2006. "The Market for Quacks," Review of Economic Studies, Oxford University Press, vol. 73(4), pages 1113-1131.
    8. Thomas A Abbott Iii, 1989. "Price Dispersion in U.S. Manufacturing," Working Papers 89-7, Center for Economic Studies, U.S. Census Bureau.

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