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Bilateral Information Sharing in Oligopoly

  • Sergio Currarini

    ()

    (Department of Economics, University Of Venice Cà Foscari and School for Advanced Studies in Venice)

  • Francesco Feri

    (University of Innsbruck)

We study the problem of information sharing in oligopoly, when sharing decisions are taken before the realization of private signals. Using the general model developed by Raith (1996), we show that if firms are allowed to make bilateral exclusive sharing agreements, then some degree of information sharing is consistent with equilibrium, and is a constant feature of equilibrium when the number of firms is not too small. Our result is to be contrasted with the traditional conclusion that no information is shared in common values situations with strategic substitutes - such as Cournot competition with demand shocks - when firms can only make industry-wide sharing contracts (e.g., a trade association).

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File URL: http://www.unive.it/media/allegato/DIP/Economia/Working_papers/Working_papers_2007/WP_DSE_Currarini_Feri_21_07.pdf
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Paper provided by Department of Economics, University of Venice "Ca' Foscari" in its series Working Papers with number 2007_21.

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Length: 20
Date of creation: 2007
Date of revision:
Handle: RePEc:ven:wpaper:2007_21
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  1. Alison J. Kirby, 1988. "Trade Associations as Information Exchange Mechanisms," RAND Journal of Economics, The RAND Corporation, vol. 19(1), pages 138-146, Spring.
  2. Richard N. Clarke, 1983. "Collusion and the Incentives for Information Sharing," Bell Journal of Economics, The RAND Corporation, vol. 14(2), pages 383-394, Autumn.
  3. Jackson, Matthew O. & Wolinsky, Asher, 1996. "A Strategic Model of Social and Economic Networks," Journal of Economic Theory, Elsevier, vol. 71(1), pages 44-74, October.
  4. Raith, Michael, 1996. "A General Model of Information Sharing in Oligopoly," Journal of Economic Theory, Elsevier, vol. 71(1), pages 260-288, October.
  5. Gal-Or, Esther, 1985. "Information Sharing in Oligopoly," Econometrica, Econometric Society, vol. 53(2), pages 329-43, March.
  6. Corsetti, Giancarlo & Devereux, Michael P. & Guiso, Luigi & Hassler, John & Saint-Paul, Gilles & Sinn, Hans-Werner & Sturm, Jan-Egbert & Vives, Xavier, 2010. "The European economy," Munich Reprints in Economics 20104, University of Munich, Department of Economics.
  7. Xavier Vives, 1990. "Trade Association Disclosure Rules, Incentives to Share Information, and Welfare," RAND Journal of Economics, The RAND Corporation, vol. 21(3), pages 409-430, Autumn.
  8. Vives, Xavier, 1984. "Duopoly information equilibrium: Cournot and bertrand," Journal of Economic Theory, Elsevier, vol. 34(1), pages 71-94, October.
  9. Gal-Or, Esther, 1986. "Information Transmission-Cournot and Bertrand Equilibria," Review of Economic Studies, Wiley Blackwell, vol. 53(1), pages 85-92, January.
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