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Costly risk verification without commitment in competitive insurance markets

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  • P. Picard

Abstract

This paper analyzes the equilibrium of an insurance market where applicants for insurance have a duty of good faith when they reveal private information about their risk type. Insurers can, at some cost, verify the type of insureds who file a claim and they are allowed to retroactively void the insurance contract if it is established that the policyholder has misrepresented his risk when the contract was taken out. However, insurers cannot precommit to their risk verification strategy. The paper analyzes the relationship between second-best Pareto-optimality and the insurance market equilibrium in a game theoretic framework. It characterizes the contracts offered at equilibrium, the individuals' contract choice as well as the conditions under which an equilibrium exists.
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Suggested Citation

  • P. Picard, 2002. "Costly risk verification without commitment in competitive insurance markets," THEMA Working Papers 2002-30, THEMA (THéorie Economique, Modélisation et Applications), Université de Cergy-Pontoise.
    • Handle: RePEc:ema:worpap:2002-30
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    File URL: http://www.u-cergy.fr/IMG/documents//2002-30Picard.pdf
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    References listed on IDEAS

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    1. Jörg Schiller, 2006. "The Impact of Insurance Fraud Detection Systems," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 73(3), pages 421-438, September.
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    12. M. Martin Boyer, 2004. "Overcompensation as a Partial Solution to Commitment and Renegotiation Problems: The Case of Ex Post Moral Hazard," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 71(4), pages 559-582, December.
    13. Picard, Pierre, 1996. "Auditing claims in the insurance market with fraud: The credibility issue," Journal of Public Economics, Elsevier, vol. 63(1), pages 27-56, December.
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    Cited by:

    1. Lando, Henrik, 2016. "Optimal rules of negligent misrepresentation in insurance contract law," International Review of Law and Economics, Elsevier, vol. 46(C), pages 70-77.
    2. Jill M. Bisco & Kathleen A. McCullough & Charles M. Nyce, 2019. "Postclaim Underwriting And The Verification Of Insured Information: Evidence From The Life Insurance Industry," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 86(1), pages 7-38, March.
    3. Michal Krawczyk, 2009. "The Role of Repetition and Observability in Deterring Insurance Fraud," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 34(1), pages 74-87, June.
    4. Raduna, Daniela Viviana & Roman, Mihai Daniel, 2011. "Risk aversion influence on insurance market," MPRA Paper 37725, University Library of Munich, Germany, revised 01 Feb 2012.
    5. Okura Mahito & Sakaki Motohiro & Yoshizawa Takuya, 2022. "A Game-Theoretic Analysis of the Sanctions for Breach of Duty to Disclose in Insurance Contracts: A Comparison of the “All or Nothing” and “Pro Rata” Methods," Asian Journal of Law and Economics, De Gruyter, vol. 13(3), pages 255-276, December.
    6. Pierre Picard, 2012. "Economic Analysis of Insurance Fraud," Working Papers hal-00725561, HAL.

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