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Separating Moral Hazard from Adverse Selection in Automobile Insurance: Longitudinal Evidence from France

  • Georges Dionne
  • Pierre-Carl Michaud
  • Maki Dahchour

This paper uses longitudinal data to perform tests of asymmetric information in the French automobile insurance market for the 1995-1997 period. This market is characterized by the presence of a regulated experience-rating scheme (bonus-malus). We demonstrate that the result of the test depends crucially on how the dynamic process between insurance claims and contract choice is modelled. We apply a Granger causality test controlling for the unobservables. We find evidence of moral hazard which we distinguish from adverse selection using a multivariate dynamic panel data model. Experience rating appears to lead high risk policyholders to choose contracts that involve less coverage over time. These policyholders respond to contract changes by increasing their unobservable efforts to reduce claims.

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Paper provided by CIRPEE in its series Cahiers de recherche with number 0420.

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Date of creation: 2004
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Handle: RePEc:lvl:lacicr:0420
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  1. repec:rus:hseeco:16303 is not listed on IDEAS
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  17. Arulampalam, W., 1998. "A Note on Estimated Coefficients in Random Effects Probit Models," The Warwick Economics Research Paper Series (TWERPS) 520, University of Warwick, Department of Economics.
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  24. Chesher, Andrew & Irish, Margaret, 1987. "Residual analysis in the grouped and censored normal linear model," Journal of Econometrics, Elsevier, vol. 34(1-2), pages 33-61.
  25. Jaap H. Abbring & James J. Heckman & Pierre-André Chiappori & Jean Pinquet, 2003. "Adverse Selection and Moral Hazard In Insurance: Can Dynamic Data Help to Distinguish?," Journal of the European Economic Association, MIT Press, vol. 1(2-3), pages 512-521, 04/05.
  26. Granger, C W J, 1969. "Investigating Causal Relations by Econometric Models and Cross-Spectral Methods," Econometrica, Econometric Society, vol. 37(3), pages 424-38, July.
  27. Jaap H. Abbring & Pierre-Andre Chiappori, 2004. "Moral Hazard and Dynamic Insurance Data," 2004 Meeting Papers 316, Society for Economic Dynamics.
  28. P. Picard, 2000. "Les nouveaux enjeux de la régulation des marchés d'assurance," THEMA Working Papers 2000-53, THEMA (THéorie Economique, Modélisation et Applications), Université de Cergy-Pontoise.
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