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Endogenous Private Information Structures

  • Sjaak Hurkens
  • Nir Vulkan

We formally incorporate the option to gather information into a game and thus endogenize the information structure. We ask whether models with exogenous information structures are robust with respect to this endogenization. Any Nash equilibrium of the game with information acquisition induces a Nash equilibrium in the corresponding game with an exogenous structure. We provide sufficient conditions on the structure of the game for which this remains true when "Nash" is replaced by "sequential". We characterize the (sequential) Nash equilibria of games with exogenous information structures that can arise as a (sequential) Nash equilibrium of games with endogenous information acquisition.

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Paper provided by Barcelona Graduate School of Economics in its series Working Papers with number 38.

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Date of creation: Sep 2003
Date of revision:
Handle: RePEc:bge:wpaper:38
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  1. Cremer, J. & Khalil, F & Rochet, J.-C., 1996. "Strategic Information Gathering Before a Contract is Offered," Papers 976.425, Toulouse - GREMAQ.
  2. Sanford J Grossman & Joseph E Stiglitz, 1997. "On the Impossibility of Informationally Efficient Markets," Levine's Working Paper Archive 1908, David K. Levine.
  3. Sjaak Hurkens & Nir Vulkan, 1997. "Free entry does not imply zero profits," Economics Working Papers 268, Department of Economics and Business, Universitat Pompeu Fabra.
  4. Cremer, Jacques & Khalil, Fahad, 1992. "Gathering Information before Signing a Contract," American Economic Review, American Economic Association, vol. 82(3), pages 566-78, June.
  5. Esther Hauk & Sjaak Hurkens, 1996. "Secret information acquisition in Cournot markets," Economics Working Papers 233, Department of Economics and Business, Universitat Pompeu Fabra, revised Aug 1997.
  6. van Damme, E.E.C., 1989. "Stable equilibria and forward induction," Other publications TiSEM bd598a8f-f017-4cab-a9ed-8, Tilburg University, School of Economics and Management.
  7. Li, Lode & McKelvey, Richard D. & Page, Talbot, 1987. "Optimal research for cournot oligopolists," Journal of Economic Theory, Elsevier, vol. 42(1), pages 140-166, June.
  8. Tom K. Lee, 1982. "Resource Information Policy and Federal Resource Leasing," Bell Journal of Economics, The RAND Corporation, vol. 13(2), pages 561-568, Autumn.
  9. Vives, Xavier, 1988. "Aggregation of Information in Large Cournot Markets," Econometrica, Econometric Society, vol. 56(4), pages 851-76, July.
  10. Nicola Persico, 1997. "Information Acquisition in Auctions," UCLA Economics Working Papers 762, UCLA Department of Economics.
  11. Cremer, Jacques & Khalil, Fahad, 1994. "Gathering information before the contract is offered: The case with two states of nature," European Economic Review, Elsevier, vol. 38(3-4), pages 675-682, April.
  12. Milgrom, Paul R, 1981. "Rational Expectations, Information Acquisition, and Competitive Bidding," Econometrica, Econometric Society, vol. 49(4), pages 921-43, June.
  13. Hwang Hae-shin, 1993. "Optimal Information Acquisition for Heterogenous Duopoly Firms," Journal of Economic Theory, Elsevier, vol. 59(2), pages 385-402, April.
  14. Anke Kessler, 1998. "The Value of Ignorance," RAND Journal of Economics, The RAND Corporation, vol. 29(2), pages 339-354, Summer.
  15. Hurkens, Sjaak & Vulkan, Nir, 2001. "Information acquisition and entry," Journal of Economic Behavior & Organization, Elsevier, vol. 44(4), pages 467-479, April.
  16. Jean-Pierre Ponssard, 1979. "The Strategic Role of Information on the Demand Function in an Oligopolistic Market," Management Science, INFORMS, vol. 25(3), pages 243-250, March.
  17. Neyman, Abraham, 1991. "The positive value of information," Games and Economic Behavior, Elsevier, vol. 3(3), pages 350-355, August.
  18. Hwang, Hae-shin, 1995. "Information Acquisition and Relative Efficiency of Competitive, Oligopoly and Monopoly Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 36(2), pages 325-40, May.
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