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Optimal risk-sharing under adverse selection and imperfect risk perception

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  • Arnold Chassagnon

    (GREMAQ - Groupe de recherche en économie mathématique et quantitative - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique)

  • Bertrand Villeneuve

    (LERNA - Economie des Ressources Naturelles - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - INRA - Institut National de la Recherche Agronomique - CEA - Commissariat à l'énergie atomique et aux énergies alternatives)

Abstract

The present paper thoroughly explores second-best efficient allocations in an insurance economy with adverse selection. We start with a natural extension of the classical model, assuming less than perfect risk perception. We characterize the constraints on efficient redistribution, and we summarize the incidence of incentives on the economy with the notions of weak and strong adverse selection. Finally, we show in what sense improving risk perception enhances welfare.

Suggested Citation

  • Arnold Chassagnon & Bertrand Villeneuve, 2005. "Optimal risk-sharing under adverse selection and imperfect risk perception," Post-Print halshs-00754069, HAL.
    • Handle: RePEc:hal:journl:halshs-00754069
    DOI: 10.1111/j.0008-4085.2005.00311.x
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    References listed on IDEAS

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    1. B. Dahlby, 1981. "Adverse selection and Pareto improvements through compulsory insurance," Public Choice, Springer, vol. 37(3), pages 547-558, January.
    2. Dionne, Georges & Fombaron, Nathalie, 1996. "Non-convexities and the efficiency of equilibria in insurance markets with asymmetric information," Economics Letters, Elsevier, vol. 52(1), pages 31-40, July.
    3. de Meza, David & Webb, David C, 2001. "Advantageous Selection in Insurance Markets," RAND Journal of Economics, The RAND Corporation, vol. 32(2), pages 249-262, Summer.
    4. Prescott, Edward C & Townsend, Robert M, 1984. "Pareto Optima and Competitive Equilibria with Adverse Selection and Moral Hazard," Econometrica, Econometric Society, vol. 52(1), pages 21-45, January.
    5. Meglena Jeleva & Bertrand Villeneuve, 2004. "Insurance contracts with imprecise probabilities and adverse selection," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 23(4), pages 777-794, May.
    6. repec:dau:papers:123456789/5358 is not listed on IDEAS
    7. Michael Rothschild & Joseph Stiglitz, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 90(4), pages 629-649.
    8. Crocker, Keith J. & Snow, Arthur, 1985. "The efficiency of competitive equilibria in insurance markets with asymmetric information," Journal of Public Economics, Elsevier, vol. 26(2), pages 207-219, March.
    9. Michael Landsberger & Isaac Meilijson, 1999. "A general model of insurance under adverse selection," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 14(2), pages 331-352.
    10. Guesnerie, Roger & Laffont, Jean-Jacques, 1984. "A complete solution to a class of principal-agent problems with an application to the control of a self-managed firm," Journal of Public Economics, Elsevier, vol. 25(3), pages 329-369, December.
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    Cited by:

    1. Eberhard Feess & Cathrin Jordan & Ilan Noy, 2022. "Insurance for Catastrophes - Indemnity vs. Parametric Insurance with Imperfect Information," CESifo Working Paper Series 9631, CESifo.
    2. 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).
    3. Amy Finkelstein & Kathleen McGarry, 2006. "Multiple Dimensions of Private Information: Evidence from the Long-Term Care Insurance Market," American Economic Review, American Economic Association, vol. 96(4), pages 938-958, September.
    4. S. Hun Seog, 2009. "Insurance Markets With Differential Information," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 76(2), pages 279-294, June.
    5. Plisson, Manuel, 2009. "Assurabilité et développement de l'assurance dépendance," Economics Thesis from University Paris Dauphine, Paris Dauphine University, number 123456789/5064 edited by Lorenzi, Jean-Hervé.

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