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Market transparency and Bertrand competition

  • KNAUFF, Malgorzata

We investigate the effects of market transparency on prices in the Bertrand duopoly model for both the cases of strategic complementarities and strategic substitutes. For the former class of games “conventional wisdom” concerning prices is confirmed, since they decrease. The consumers are always better off with higher transparency but changes in firm's profits are ambiguous. For the latter class of games, an increase in market transparency may lead to an increase in one of the prices, which implies ambiguity in consumers' utility and firms' profits.

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Paper provided by Université catholique de Louvain, Center for Operations Research and Econometrics (CORE) in its series CORE Discussion Papers with number 2006037.

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Date of creation: 00 Apr 2006
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Handle: RePEc:cor:louvco:2006037
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  1. Møllgaard, H. Peter & Overgaard, Per Baltzer, 2001. "Market Transparency And Competition Policy," Working Papers 06-2001, Copenhagen Business School, Department of Economics.
  2. Vives, Xavier, 1990. "Nash equilibrium with strategic complementarities," Journal of Mathematical Economics, Elsevier, vol. 19(3), pages 305-321.
  3. Christian Schultz, 2002. "Market Transparency and Product Differentiation," CIE Discussion Papers 2002-02, University of Copenhagen. Department of Economics. Centre for Industrial Economics.
  4. Milgrom, Paul & Shannon, Chris, 1994. "Monotone Comparative Statics," Econometrica, Econometric Society, vol. 62(1), pages 157-80, January.
  5. Michael Smith & Erik Brynjolfsson, 1999. "Frictionless Commerce? A Comparison of Internet and Conventional Retailers," Computing in Economics and Finance 1999 1022, Society for Computational Economics.
  6. Rabah Amir & Isabel Grilo, 2003. "On strategic complementarity conditions in Bertrand oligopoly," Economic Theory, Springer, vol. 22(1), pages 227-232, 08.
  7. AMIR, Rabah, 1994. "Cournot Oligopoly and the Theory of Supermodular Games," CORE Discussion Papers 1994013, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  8. Bester, Helmut & Petrakis, Emmanuel, 1995. "Price competition and advertising in oligopoly," European Economic Review, Elsevier, vol. 39(6), pages 1075-1088, June.
  9. Boone, Jan & Potters, Jan, 2002. "Transparency, Prices and Welfare with Imperfect Substitutes," CEPR Discussion Papers 3256, C.E.P.R. Discussion Papers.
  10. Schultz, Christian, 2005. "Transparency on the consumer side and tacit collusion," European Economic Review, Elsevier, vol. 49(2), pages 279-297, February.
  11. Burdett, Kenneth & Judd, Kenneth L, 1983. "Equilibrium Price Dispersion," Econometrica, Econometric Society, vol. 51(4), pages 955-69, July.
  12. Xavier Vives, 2001. "Oligopoly Pricing: Old Ideas and New Tools," MIT Press Books, The MIT Press, edition 1, volume 1, number 026272040x, June.
  13. Varian, Hal R, 1980. "A Model of Sales," American Economic Review, American Economic Association, vol. 70(4), pages 651-59, September.
  14. Nilsson, Arvid, 1999. "Transparency and Competition," SSE/EFI Working Paper Series in Economics and Finance 298, Stockholm School of Economics, revised 29 Nov 1999.
  15. Rabah Amir, 2005. "Supermodularity and Complementarity in Economics: An Elementary Survey," Southern Economic Journal, Southern Economic Association, vol. 71(3), pages 636-660, January.
  16. Stahl, Dale O, II, 1989. "Oligopolistic Pricing with Sequential Consumer Search," American Economic Review, American Economic Association, vol. 79(4), pages 700-712, September.
  17. Milgrom, Paul & Roberts, John, 1990. "Rationalizability, Learning, and Equilibrium in Games with Strategic Complementarities," Econometrica, Econometric Society, vol. 58(6), pages 1255-77, November.
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