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On the Possibility of Profitable Self‐Selection Contracts in Competitive Insurance Markets

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  • Arthur Snow

Abstract

Several studies extend the Rothschild–Stiglitz model of competitive insurance contracting with adverse selection by incorporating additional dimensions of private information and conclude that some insurers may earn positive profit in a separating, self‐selection equilibrium, provided each insurer is restricted to making a single contract offer. The main result of this article is that these profitable configurations are not sustainable when individual insurers can offer multiple contracts. It is also shown that the ability to offer multiple contracts overturns equilibria that have applicants from different risk classes pooled as well as those where profits are dissipated by a fixed entry cost.

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  • Arthur Snow, 2009. "On the Possibility of Profitable Self‐Selection Contracts in Competitive Insurance Markets," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 76(2), pages 249-259, June.
    • Handle: RePEc:bla:jrinsu:v:76:y:2009:i:2:p:249-259
    DOI: 10.1111/j.1539-6975.2009.01297.x
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    References listed on IDEAS

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    1. 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.
    2. repec:dau:papers:123456789/5370 is not listed on IDEAS
    3. 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.
    4. repec:adr:anecst:y:2003:i:69:p:06 is not listed on IDEAS
    5. Bertrand Villeneuve, 2003. "Concurrence et antisélection multidimensionnelle en assurance," Annals of Economics and Statistics, GENES, issue 69, pages 119-142.
    6. Hellwig, Martin, 1987. "Some recent developments in the theory of competition in markets with adverse selection ," European Economic Review, Elsevier, vol. 31(1-2), pages 319-325.
    7. Wilson, Charles, 1977. "A model of insurance markets with incomplete information," Journal of Economic Theory, Elsevier, vol. 16(2), pages 167-207, December.
    8. Hajime Miyazaki, 1977. "The Rat Race and Internal Labor Markets," Bell Journal of Economics, The RAND Corporation, vol. 8(2), pages 394-418, Autumn.
    9. Herschel I. Grossman, 1979. "Adverse Selection, Dissembling, and Competitive Equilibrium," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 336-343, Spring.
    10. Asheim, Geir B. & Nilssen, Tore, 1996. "Non-discriminating renegotiation in a competitive insurance market," European Economic Review, Elsevier, vol. 40(9), pages 1717-1736, December.
    11. Spence, Michael, 1978. "Product differentiation and performance in insurance markets," Journal of Public Economics, Elsevier, vol. 10(3), pages 427-447, December.
    12. Villeneuve, Bertrand, 1997. "Random Contracts and Positive Profits in an Insurance Market under Adverse Selection," IDEI Working Papers 66, Institut d'Économie Industrielle (IDEI), Toulouse.
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    Cited by:

    1. M. Martin Boyer & Franca Glenzer, 2021. "Pensions, annuities, and long-term care insurance: on the impact of risk screening," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 46(2), pages 133-174, September.
    2. Dionne, Georges & Harrington, Scott, 2017. "Insurance and Insurance Markets," Working Papers 17-2, HEC Montreal, Canada Research Chair in Risk Management.
    3. 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.
    4. Rachel J. Huang & Alexander Muermann & Larry Y. Tzeng, 2016. "Hidden Regret In Insurance Markets," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 83(1), pages 181-216, January.
    5. Chu-Shiu Li & Sheng-Chang Peng, 2011. "Can Auto Liability Insurance Purchases Signal Risk Attitude?," International Journal of Business and Economics, School of Management Development, Feng Chia University, Taichung, Taiwan, vol. 10(2), pages 159-164, August.
    6. Willington Manuel & Alegría Alexander, 2012. "Collusion in a One-Period Insurance Market with Adverse Selection," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 12(1), pages 1-32, April.
    7. Levy, Yehuda John & Veiga, Andre, 2020. "On the existence of positive equilibrium profits in competitive screening markets," Games and Economic Behavior, Elsevier, vol. 124(C), pages 140-168.
    8. M. Martin Boyer & Richard Peter, 2020. "Insurance Fraud in a Rothschild–Stiglitz World," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 87(1), pages 117-142, March.

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