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Concurrence et antisélection multidimensionnelle en assurance

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  • Villeneuve, Bertrand

Abstract

In the Rothschild and Stiglitz model, assuming differences in risk aversions may lead to unusual equilibrium configurations like multiple equilibria, equilibrium positive profits, or random contracts. We characterize the various types of equilibria and give results on the determinants of the equilibrium regime.We conclude with a few remarks on classical equilibrium concepts in insurance economics, and we suggest policy implications.

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Bibliographic Info

Paper provided by Paris Dauphine University in its series Economics Papers from University Paris Dauphine with number 123456789/5370.

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Date of creation: 2003
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Publication status: Published in Annales d'Economie et de Statistique, 2003, no. 69. pp. 119-142.Length: 23 pages
Handle: RePEc:dau:papers:123456789/5370

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Keywords: Assurances; équilibres multiples; risque; antisélection;

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References

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  1. Simon, Leo K. & Zame, William R., 1987. "Discontinous Games and Endogenous Sharing Rules," Department of Economics, Working Paper Series qt8n46v2wv, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
  2. Dasgupta, Partha & Maskin, Eric, 1986. "The Existence of Equilibrium in Discontinuous Economic Games, I: Theory," Review of Economic Studies, Wiley Blackwell, vol. 53(1), pages 1-26, January.
  3. Edward C Prescott & Robert M Townsend, 2010. "Pareto Optima and Competitive Equilibria With Adverse Selection and Moral Hazard," Levine's Working Paper Archive 2069, David K. Levine.
  4. Dionne, G. & Doherty, N., 1991. "Adverse Selection in Insurance Markets: a Selective Survey," Cahiers de recherche 9105, Universite de Montreal, Departement de sciences economiques.
  5. Chiappori, Pierre-Andre & Macho, Ines & Rey, Patrick & Salanie, Bernard, 1994. "Repeated moral hazard: The role of memory, commitment, and the access to credit markets," European Economic Review, Elsevier, vol. 38(8), pages 1527-1553, October.
  6. Michael Landsberger & Isaac Meilijson, 1999. "A general model of insurance under adverse selection," Economic Theory, Springer, vol. 14(2), pages 331-352.
  7. 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 153-69, February.
  8. Doherty, Neil A & Schlesinger, Harris, 1983. "Optimal Insurance in Incomplete Markets," Journal of Political Economy, University of Chicago Press, vol. 91(6), pages 1045-54, December.
  9. 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.
  10. Koehl, Pierre-François & Villeneuve, Bertrand, 2001. "Complementarity and Substituability in Multiple-Risk Insurance Markets," Economics Papers from University Paris Dauphine 123456789/5355, Paris Dauphine University.
  11. Claude Fluet & Fran�ois Pannequin, 1997. "Complete Versus Incomplete Insurance Contracts under Adverse Selection with Multiple Risks," The Geneva Risk and Insurance Review, Palgrave Macmillan, vol. 22(2), pages 81-101, December.
  12. Bruno Jullien & Bernard Salanié & François Salanié, 2000. "Screening Risk-Averse Agents Under Moral Hazard," Working Papers 2000-41, Centre de Recherche en Economie et Statistique.
  13. Fagart, M.C., 1995. "Concurrence en Contrats, anti-selection et structure d'information," Papers 9503, Paris X - Nanterre, U.F.R. de Sc. Ec. Gest. Maths Infor..
  14. Richard J. Arnott & Joseph E. Stiglitz, 1988. "Randomization with Asymmetric Information," NBER Working Papers 2507, National Bureau of Economic Research, Inc.
  15. John G. Riley, 1976. "Informational Equilibrium," UCLA Economics Working Papers 071, UCLA Department of Economics.
  16. Jullien, Bruno & Salanié, Bernard & Salanié, François, 2001. "Screening Risk Averse Agents Under Moral Hazard," CEPR Discussion Papers 3076, C.E.P.R. Discussion Papers.
  17. Dasgupta, Partha & Maskin, Eric, 1986. "The Existence of Equilibrium in Discontinuous Economic Games, II: Applications," Review of Economic Studies, Wiley Blackwell, vol. 53(1), pages 27-41, January.
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Citations

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Cited by:
  1. Nick Netzer & Florian Scheuer, 2009. "Competitive Screening in Insurance Markets with Endogenous Wealth Heterogeneity," SOI - Working Papers 0907, Socioeconomic Institute - University of Zurich, revised Jun 2009.
  2. Bruno Jullien & Bernard Salanié & François Salanié, 2007. "Screening risk-averse agents under moral hazard: single-crossing and the CARA case," Economic Theory, Springer, vol. 30(1), pages 151-169, January.
  3. Daniel McFadden & Carlos Noton & Pau Olivella, 2013. "Minimum Coverage Regulation in Insurance Markets," Documentos de Trabajo 301, Centro de Economía Aplicada, Universidad de Chile.
  4. Alma Cohen & Liran Einav, 2007. "Estimating Risk Preferences from Deductible Choice," American Economic Review, American Economic Association, vol. 97(3), pages 745-788, June.
  5. Paulo Barelli & Suren Basov & Mauricio Bugarin & Ian King, 2012. "The Robustness of Exclusion in Multi-dimensional Screening," RCER Working Papers 571, University of Rochester - Center for Economic Research (RCER).
  6. Ciprian Matis & Eugenia Matis, 2013. "Asymmetric Information In Insurance Field: Some General Considerations," Annales Universitatis Apulensis Series Oeconomica, Faculty of Sciences, "1 Decembrie 1918" University, Alba Iulia, vol. 1(15), pages 17.
  7. Paulo Barelli & Suren Basov & Mauricio Bugarin & Ian King, 2010. "The Inclusiveness of Exclusion," Department of Economics - Working Papers Series 1096, The University of Melbourne.
  8. Olivella, Pau & Schroyen, Fred, 2011. "Multidimensional screening in a monopolistic insurance market," Discussion Paper Series in Economics 19/2011, Department of Economics, Norwegian School of Economics.
  9. Georges Dionne & Nathalie Fombaron & Neil Doherty, 2012. "Adverse Selection in Insurance Contracting," Cahiers de recherche 1231, CIRPEE.
  10. Legal, Renaud & Plisson, Manuel, 2008. "Assurance dépendance, effets de sélection et antisélection," Economics Papers from University Paris Dauphine 123456789/5055, Paris Dauphine University.
  11. Dardanoni, Valentino & Li Donni, Paolo, 2012. "Incentive and selection effects of Medigap insurance on inpatient care," Journal of Health Economics, Elsevier, vol. 31(3), pages 457-470.
  12. Sonnenholzner, Michael & Wambach, Achim, 2006. "On the role of patience in an insurance market with asymmetric information," CFS Working Paper Series 2007/04, Center for Financial Studies (CFS).

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