Competitive Insurance Markets with Two Unobservables
We study a screening game in a competitive insurance market, in which insurance customers differ with respect to both accident probability and degree of risk aversion. It is shown that indifference curves of customers in different risk classes cross exactly twice: thus the single crossing property does not hold. The existence of a unique reactive equilibrium is demonstrated. This equilibrium may be markedly different from the Pareto-dominant separating equilibrium that exists when single crossing holds. In particular, types may be pooled in equilibrium, so that cross-subsidization occurs. Moreover, insurance firms can earn positive expected profit in equilibrium, despite the usual assumption of Bertrand-like price-competition among firms. We study the implications of the model for the efficiency of market equilibrium and for the effects of rate-of-return regulation of insurance firms.
|Date of creation:||12 Mar 1996|
|Date of revision:|
|Contact details of provider:|| Postal: 150 St. George Street, Toronto, Ontario|
Phone: (416) 978-5283
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.:
- Wilson, Charles, 1977. "A model of insurance markets with incomplete information," Journal of Economic Theory, Elsevier, vol. 16(2), pages 167-207, December.
- Bagwell, Laurie Simon & Bernheim, B Douglas, 1996. "Veblen Effects in a Theory of Conspicuous Consumption," American Economic Review, American Economic Association, vol. 86(3), pages 349-73, June.
- Quinzii, Martine & Rochet, Jean-Charles, 1985. "Multidimensional signalling," Journal of Mathematical Economics, Elsevier, vol. 14(3), pages 261-284, June.
- Engers, Maxim & Fernandez, Luis F, 1987. "Market Equilibrium with Hidden Knowledge and Self-selection," Econometrica, Econometric Society, vol. 55(2), pages 425-39, March.
- Myerson, Roger B, 1983.
"Mechanism Design by an Informed Principal,"
Econometric Society, vol. 51(6), pages 1767-97, November.
- John G. Riley, 1976.
UCLA Economics Working Papers
071, UCLA Department of Economics.
- Laffont, Jean-Jacques & Rochet, Jean-Charles, 1988. " Stock Market Portfolios and the Segmentation of the Insurance Market," Scandinavian Journal of Economics, Wiley Blackwell, vol. 90(3), pages 435-46.
- Paul R. Milgrom & John Roberts, 1984.
"Price and Advertising Signals of Product Quality,"
Cowles Foundation Discussion Papers
709, Cowles Foundation for Research in Economics, Yale University.
- Maskin, Eric & Tirole, Jean, 1992. "The Principal-Agent Relationship with an Informed Principal, II: Common Values," Econometrica, Econometric Society, vol. 60(1), pages 1-42, January.
- Landsberger Michael & Meilijson Isaac, 1994. "Monopoly Insurance under Adverse Selection When Agents Differ in Risk Aversion," Journal of Economic Theory, Elsevier, vol. 63(2), pages 392-407, August.
- In-Koo Cho & David M. Kreps, 1987.
"Signaling Games and Stable Equilibria,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 102(2), pages 179-221.
- Engers, Maxim, 1987. "Signalling with Many Signals," Econometrica, Econometric Society, vol. 55(3), pages 663-74, May.
When requesting a correction, please mention this item's handle: RePEc:tor:tecipa:msmart-96-01. 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: (RePEc Maintainer)
If references are entirely missing, you can add them using this form.