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Endogenous information structures

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Listed:
  • Sjaak Hurkens
  • Nir Vulkan

Abstract

Many models in the economics literature deal with strategic situations with privately informed agents. In those models the information structure is assumed to be exogenous and common knowledge. We consider whether such models, and the results they produce, are robust with respect the endogenization of the information structure. The results depend on whether information acquisition is secret or private, and on whether the strategic situation involves simultaneous or sequential moves. In particular we find that only when information is secretly acquired and moves are simultaneous, the results are fully robust. When information is acquired secretly but moves are sequential additional equilibria may appear. Instead, private information acquisition may make the equilibrium set smaller.

Suggested Citation

  • Sjaak Hurkens & Nir Vulkan, 1999. "Endogenous information structures," Economics Working Papers 386, Department of Economics and Business, Universitat Pompeu Fabra.
  • Handle: RePEc:upf:upfgen:386
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    References listed on IDEAS

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    1. 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.
    2. Cremer, Jacques & Khalil, Fahad, 1992. "Gathering Information before Signing a Contract," American Economic Review, American Economic Association, vol. 82(3), pages 566-578, June.
    3. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
    4. Cremer, Jacques & Khalil, Fahad & Rochet, Jean-Charles, 1998. "Strategic Information Gathering before a Contract Is Offered," Journal of Economic Theory, Elsevier, vol. 81(1), pages 163-200, July.
    5. 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.
    6. 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.
    7. 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.
    8. Hurkens, Sjaak & Vulkan, Nir, 2003. "Free entry does not imply zero profits," Economics Letters, Elsevier, vol. 81(3), pages 285-290, December.
    9. Esther Hauk & Sjaak Hurkens, 2001. "Secret information acquisition in Cournot markets," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 18(3), pages 661-681.
    10. Hurkens, Sjaak & Vulkan, Nir, 2001. "Information acquisition and entry," Journal of Economic Behavior & Organization, Elsevier, vol. 44(4), pages 467-479, April.
    11. Nicola Persico, 2000. "Information Acquisition in Auctions," Econometrica, Econometric Society, vol. 68(1), pages 135-148, January.
    12. Vives, Xavier, 1988. "Aggregation of Information in Large Cournot Markets," Econometrica, Econometric Society, vol. 56(4), pages 851-876, July.
    13. Hwang Hae-shin, 1993. "Optimal Information Acquisition for Heterogenous Duopoly Firms," Journal of Economic Theory, Elsevier, vol. 59(2), pages 385-402, April.
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    More about this item

    Keywords

    Information acquisition; private information; equilibrium;

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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