Does Propitious Selection Explain why Riskier People Buy less Insurance
Abstract
Empirical testing of asymmetric information in the insurance market has uncovered a negative correlation between risks levels and insurance purchases, rather than the positive correlation predicted by the standard insurance theory. Hemenway (1990) proposes an explanation for this negative correlation, called “propitious selection”. He argues that potential insurance buyers have different tastes for risk and that ‘individuals who are highly risk avoiding are more likely both to try to reduce the hazard and to purchase insurance’ (p. 1064). Chiappori and Salanie (2000) also suggest that this line of argument, which they call ‘cherry picking’, may explain the observed negative correlation. In this paper, we show that the propitious selection argument does not imply negative correlation between risk levels and insurance purchases, because it fails to take into account the supply side of the insurance market. To illustrate this claim, we provide a model where, although we assume that individuals differ in risk aversion and that the more risk averse individuals exert more precaution and buy more insurance, we end up with a positive correlation between risk and insurance purchases at equilibrium. The reason is that, in any separating equilibrium, the more risk averse individuals face insurance overprovision which, combined with moral hazard, increases their risk relative to the less risk averse individuals. To obtain the negative correlation between risk and insurance purchases, one further needs the extra condition of decreasing marginal willingness to pay for the less risk averse individuals. Finally, we find that propitious selection has profound policy implications for social insuranceDownload Info
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Paper provided by Université catholique de Louvain, Département des Sciences Economiques in its series Discussion Papers (ECON - Département des Sciences Economiques) with number 2006017.Length: 21
Date of creation: 01 Mar 2006
Date of revision:
Handle: RePEc:ctl:louvec:2006017
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Related research
Keywords: preference-based adverse selection; cherry picking; precaution; social insurance;Other versions of this item:
- De Donder, Philippe & Hindriks, Jean, 2006. "Does Propitious Selection Explain why Riskier People buy less Insurance?," IDEI Working Papers 399, Institut d'Économie Industrielle (IDEI), Toulouse.
- DE DONDER, Philippe & HINDRIKS, Jean, 2006. "Does propitious selection explain why riskier people buy less insurance?," CORE Discussion Papers 2006032, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- De Donder, Philippe & Hindriks, Jean J.G., 2006. "Does Propitious Selection Explain Why Riskier People Buy Less Insurance?," CEPR Discussion Papers 5640, C.E.P.R. Discussion Papers.
- D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
- G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-06-10 (All new papers)
- NEP-FIN-2006-06-10 (Finance)
- NEP-FMK-2006-06-10 (Financial Markets)
- NEP-IAS-2006-06-10 (Insurance Economics)
- NEP-UPT-2006-06-10 (Utility Models & Prospect Theory)
References
References listed on IDEASPlease report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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Citations
Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.Cited by:
- Hultkrantz, Lars & Lindberg, Gunnar, 2009.
"Pay-as-you-speed:An economic field-experiment,"
Working Papers
2009:8, Swedish National Road & Transport Research Institute (VTI).
- Hultkrantz, Lars & Lindberg, Gunnar, 2009. "Pay-As-You-Speed: An Economic Field-Experiment," Working Papers 2009:12, Örebro University, School of Business.
- Alma Cohen & Peter Siegelman, 2009.
"Testing for Adverse Selection in Insurance Markets,"
NBER Working Papers
15586, National Bureau of Economic Research, Inc.
- Alma Cohen & Peter Siegelman, 2010. "Testing for Adverse Selection in Insurance Markets," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 77(1), pages 39-84.
- Tsvetanka Karagoyozova & Peter Siegelman, 2006. "Is There Propitious Selection in Insurance Markets?," Working papers 2006-20, University of Connecticut, Department of Economics.
- Nick Netzer & Florian Scheuer, 2006. "Competitive Screening in Insurance Markets with Endogenous Labor Supply," Discussion Papers of DIW Berlin 614, DIW Berlin, German Institute for Economic Research.
- Stanciole, Anderson, 2007. "Health Insurance and Life Style Choices: Identifying the Ex Ante Moral Hazard," IRISS Working Paper Series 2007-10, IRISS at CEPS/INSTEAD.
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