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Concurrence et antisélection multidimensionnelle en assurance

  • Villeneuve, Bertrand

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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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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  1. Michael Landsberger & Isaac Meilijson, 1999. "A general model of insurance under adverse selection," Economic Theory, Springer, vol. 14(2), pages 331-352.
  2. Chiappori, P.A. & Macho, I. & Rey, P. & Salanié, B., 1989. "Repeated Moral Hazard: The Role of Memory, Commitment, and the Access to Credit Markets," DELTA Working Papers 89-18, DELTA (Ecole normale supérieure).
  3. John G. Riley, 1976. "Informational Equilibrium," UCLA Economics Working Papers 071, UCLA Department of Economics.
  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. Jullien, Bruno & Salanié, Bernard & Salanié, François, 2001. "Screening Risk-Averse Agents Under Moral Hazard," IDEI Working Papers 131, Institut d'Économie Industrielle (IDEI), Toulouse.
  6. Fagart, Marie-Cécile, 1993. "Concurrence en contrats, anti-sélection et structure d'information," CEPREMAP Working Papers (Couverture Orange) 9317, CEPREMAP.
  7. Leo K. Simon and William R. Zame., 1987. "Discontinuous Games and Endogenous Sharing Rules," Economics Working Papers 8756, University of California at Berkeley.
  8. Richard Arnott & Joseph E Stiglitz, 2010. "Randomization with Asymmetric Information," Levine's Working Paper Archive 2054, David K. Levine.
  9. 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.
  10. 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.
  11. 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.
  12. Prescott, Edward C & Townsend, Robert M, 1984. "Pareto Optima and Competitive Equilibria with Adverse Selection and Moral Hazard," Econometrica, Econometric Society, vol. 52(1), pages 21-45, January.
  13. 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.
  14. Koehl, Pierre-Francois & Villeneuve, Bertrand, 2001. "Complementarity and Substituability in Multiple-Risk Insurance Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 42(1), pages 245-66, February.
  15. 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.
  16. 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.
  17. 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.
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