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Market Equilibrium with Hidden Knowledge and Self-selection

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  • Engers, Maxim
  • Fernandez, Luis F

Abstract

The problem of the existence of a competitive equilibrium in models with hidden knowledge and self-knowledge has been discussed previously by M. Rothschild and J. E. Stiglitz_(1976), C. A. Wilson_(1977), and J. G. Riley_(1979). Recent analyses of such models by I. Cho and D. Kreps_(1986) and Riley argue for a particular outcome - the Pareto-dominant separating, zero-profit one. The authors prove the existence of such an outcome under very general conditions and, generalizing the reactive equilibrium concept introduced by Riley, they prove this outcome is the unique reactive equilibrium. Copyright 1987 by The Econometric Society.

Suggested Citation

  • Engers, Maxim & Fernandez, Luis F, 1987. "Market Equilibrium with Hidden Knowledge and Self-selection," Econometrica, Econometric Society, vol. 55(2), pages 425-439, March.
  • Handle: RePEc:ecm:emetrp:v:55:y:1987:i:2:p:425-39
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    Cited by:

    1. Mimra, Wanda & Wambach, Achim, 2016. "A note on uniqueness in game-theoretic foundations of the reactive equilibrium," Economics Letters, Elsevier, vol. 141(C), pages 39-43.
    2. Pierre Picard, 2019. "Equilibrium in Insurance Markets With Adverse Selection When Insurers Pay Policy Dividends," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 86(4), pages 887-914, December.
    3. Alessio Emanuele BIONDO, 2011. "High-Tech Products and the Double Adverse Selection: Does Commercial Distribution Worsen Efficiency?," Journal of Knowledge Management, Economics and Information Technology, ScientificPapers.org, vol. 1(7), pages 1-18, December.
    4. Smart, Michael, 2000. "Competitive Insurance Markets with Two Unobservables," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 41(1), pages 153-169, February.
    5. Dosis, Anastasios, 2017. "Nash equilibrium in competitive insurance," Economics Letters, Elsevier, vol. 152(C), pages 5-8.
    6. Wanda Mimra & Achim Wambach, 2019. "Contract withdrawals and equilibrium in competitive markets with adverse selection," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 67(4), pages 875-907, June.
    7. Stephan O. Hornig & Horst Rottmann & Rüdiger Wapler, 2009. "Information Asymmetry, Education Signals and the Case of Ethnic and Native Germans," CESifo Working Paper Series 2683, CESifo.
    8. De Feo, Giuseppe & Hindriks, Jean, 2014. "Harmful competition in insurance markets," Journal of Economic Behavior & Organization, Elsevier, vol. 106(C), pages 213-226.
    9. Dan Anderberg, 1999. "Adverse selection, competition, and linear self-insurance," Finnish Economic Papers, Finnish Economic Association, vol. 12(1), pages 3-15, Spring.
    10. Azevedo, Eduardo M. & Gottlieb, Daniel, 2019. "An example of non-existence of Riley equilibrium in markets with adverse selection," Games and Economic Behavior, Elsevier, vol. 116(C), pages 152-157.
    11. DE FEO, Giuseppe & HINDRIKS, Jean, 2005. "Efficiency of competition in insurance markets with adverse selection," LIDAM Discussion Papers CORE 2005054, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    12. Theodoros M. Diasakos & Kostas Koufopoulos, 2011. "Efficient Nash Equilibrium under Adverse Selection," Carlo Alberto Notebooks 215, Collegio Carlo Alberto.
    13. Dosis, Anastasios, 2019. "Optimal ex post risk adjustment in markets with adverse selection," Journal of Mathematical Economics, Elsevier, vol. 85(C), pages 52-59.
    14. Barry Nalebuff & Andres Rodriguez & Joseph E. Stiglitz, 1993. "Equilibrium Unemployment as a Worker Screening Device," NBER Working Papers 4357, National Bureau of Economic Research, Inc.
    15. Pierre Picard, 2014. "Participating Insurance Contracts and the Rothschild-Stiglitz Equilibrium Puzzle," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 39(2), pages 153-175, September.
    16. Diasakos, Theodoros M. & Koufopoulos, Kostas, 2018. "(Neutrally) Optimal Mechanism under Adverse Selection: The canonical insurance problem," Games and Economic Behavior, Elsevier, vol. 111(C), pages 159-186.
    17. Van Tassel, Eric, 1999. "Group lending under asymmetric information," Journal of Development Economics, Elsevier, vol. 60(1), pages 3-25, October.
    18. Wanda Mimra & Achim Wambach, 2011. "A Game-Theoretic Foundation for the Wilson Equilibrium in Competitive Insurance Markets with Adverse Selection," CESifo Working Paper Series 3412, CESifo.
    19. Benjamin R. Handel & Igal Hendel & Michael D. Whinston, 2013. "Equilibria in Health Exchanges: Adverse Selection vs. Reclassification Risk," NBER Working Papers 19399, National Bureau of Economic Research, Inc.
    20. Wanda Mimra & Achim Wambach, 2014. "New Developments in the Theory of Adverse Selection in Competitive Insurance," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 39(2), pages 136-152, September.
    21. Thakor, Anjan V. & Udell, Gregory F., 1987. "An economic rationale for the pricing structure of bank loan commitments," Journal of Banking & Finance, Elsevier, vol. 11(2), pages 271-289, June.
    22. Manelli, Alejandro M., 1997. "The Never-a-Weak-Best-Response Test in Infinite Signaling Games," Journal of Economic Theory, Elsevier, vol. 74(1), pages 152-173, May.
    23. Gemmo, Irina & Kubitza, Christian & Rothschild, Casey G., 2018. "The existence of the Miyazaki-Wilson-Spence equilibrium with continuous type distributions," ICIR Working Paper Series 32/18, Goethe University Frankfurt, International Center for Insurance Regulation (ICIR).
    24. Strand,J., 2000. "Competitive effort and employment determination with team production," Memorandum 33/2000, Oslo University, Department of Economics.

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