Does Propitious Selection Explain why Riskier People buy less Insurance?
Empirical testing of asymmetric information in the insurance market has uncovered a negative correlation between risk 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 Salanié (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 thatindividuals 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 theirrisk 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 insurance.
(This abstract was borrowed from another version of this item.)
|Date of creation:||Mar 2006|
|Date of revision:|
|Publication status:||Published in Journal of Risk and Uncertainty, vol.�38, n°1, février 2009, p.�73-86.|
|Contact details of provider:|| Postal: |
Phone: +33 (0)5 61 12 85 89
Fax: + 33 (0)5 61 12 86 37
Web page: http://www.idei.fr/
More information through EDIRC
References listed on IDEAS
Please 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.:
- Bruno Jullien & Bernard Salanié & François Salanié, 2000.
"Screening Risk-Averse Agents Under Moral Hazard,"
2000-41, Centre de Recherche en Economie et Statistique.
- Jullien, Bruno & Salanié, Bernard & Salanié, François, 2001. "Screening Risk Averse Agents Under Moral Hazard," CEPR Discussion Papers 3076, C.E.P.R. Discussion Papers.
- Jullien, Bruno & Salanié, Bernard & Salanié, François, 2001. "Screening Risk-Averse Agents Under Moral Hazard," IDEI Working Papers 131, Institut d'Économie Industrielle (IDEI), Toulouse.
- Jullien, B. & Salanie, B. & Salanie, F., 1998.
"Should More Risk-Averse Agents Exert More Effort?,"
98.489, Toulouse - GREMAQ.
- John Cawley & Tomas Philipson, 1996.
"An Empirical Examination of Information Barriers to Trade in Insurance,"
NBER Working Papers
5669, National Bureau of Economic Research, Inc.
- Tomas Philipson & John Cawley, 1999. "An Empirical Examination of Information Barriers to Trade in Insurance," American Economic Review, American Economic Association, vol. 89(4), pages 827-846, September.
- John Cawley & Tomas Philipson, 1997. "An Empirical Examination of Information Barriers to Trade inInsurance," University of Chicago - George G. Stigler Center for Study of Economy and State 132, Chicago - Center for Study of Economy and State.
- Hemenway, David, 1992. " Propitious Selection in Insurance," Journal of Risk and Uncertainty, Springer, vol. 5(3), pages 247-51, July.
- Yaari, Menahem E, 1987. "The Dual Theory of Choice under Risk," Econometrica, Econometric Society, vol. 55(1), pages 95-115, January.
- Louis Eeckhoudt & Christian Gollier, 2005. "The impact of prudence on optimal prevention," Economic Theory, Springer, vol. 26(4), pages 989-994, November.
- DE DONDER, Philippe & HINDRIKS, Jean, .
"The politics of redistributive social insurance,"
CORE Discussion Papers RP
-1674, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- HINDRIKS, Jean & DE DONDER, Philippe, 2001. "The politics of redistributive social insurance," CORE Discussion Papers 2001054, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Jean Hindriks & Philippe De Donder, 2001. "The Politics of Redistributive Social Insurance," Working Papers 444, Queen Mary University of London, School of Economics and Finance.
- De Meza, D. & Webb, D.C., 2000.
"Advantageous Selection in Insurance Market,"
0007, Exeter University, Department of Economics.
- Hemenway, David, 1990. "Propitious Selection," The Quarterly Journal of Economics, MIT Press, vol. 105(4), pages 1063-69, November.
- Pierre-André Chiappori & Bernard Salanié, 1997.
"Testing for Asymmetric Information in Insurance Markets,"
97-11, Centre de Recherche en Economie et Statistique.
- Pierre-Andre Chiappori & Bernard Salanie, 2000. "Testing for Asymmetric Information in Insurance Markets," Journal of Political Economy, University of Chicago Press, vol. 108(1), pages 56-78, February.
- Amy Finkelstein & Kathleen McGarry, 2003. "Private Information and its Effect on Market Equilibrium: New Evidence from Long-Term Care Insurance," NBER Working Papers 9957, National Bureau of Economic Research, Inc.
When requesting a correction, please mention this item's handle: RePEc:ide:wpaper:5516. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.