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La Theorie Economique de L'auto-Protection

  • Laffont, J.J.

[fre] L'objet de cette note est de prendre en compte le phénomène d'autoprotection dans une théorie des assurances d'équilibre général. Après avoir mis en évidence la possibilité d'inexistence de l'équilibre concurrentiel et son inefficacité très générale, lorsqu'il existe, nous étudions des politiques économiques susceptibles de rétablir l'optimalité parétienne : prime variable liée à l'activité d'autoprotection, prime variable liée à la quantité d'assurance sélectionnée, prime définie sur la base des déclarations de l'agent et contrôlée par une cour de justice, etc. [eng] The economic theory of self-protection The purpose of this paper is to take info account self'protection in a general equilibrium theory of Insurance. First, we show why the competitive equilibrium may fait to exist and why it is in general Pareto inefficient, when it cxists. Then, we study a number of economic policies designed to restore Pareto efficiency : Insurance premium variable with the level of self~protection, with the quantity of Insurance, Insurance premium defined on the basis of the agent's declarations, etc.

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Paper provided by Universite de Montreal, Departement de sciences economiques in its series Cahiers de recherche with number 7503.

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Length: 43P. pages
Date of creation: 1975
Date of revision:
Handle: RePEc:mtl:montde:7503
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  1. Mark V. Pauly, 1974. "Overinsurance and Public Provision of Insurance: The Roles of Moral Hazard and Adverse Selection," The Quarterly Journal of Economics, Oxford University Press, vol. 88(1), pages 44-62.
  2. George A. Akerlof, 1970. "The Market for "Lemons": Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, Oxford University Press, vol. 84(3), pages 488-500.
  3. Malinvaud, E, 1973. "Markets for an Exchange Economy with Individual Risks," Econometrica, Econometric Society, vol. 41(3), pages 383-410, May.
  4. Malinvaud, E., 1972. "The allocation of individual risks in large markets," Journal of Economic Theory, Elsevier, vol. 4(2), pages 312-328, April.
  5. Ehrlich, Isaac & Becker, Gary S, 1972. "Market Insurance, Self-Insurance, and Self-Protection," Journal of Political Economy, University of Chicago Press, vol. 80(4), pages 623-48, July-Aug..
  6. Gould, John P, 1969. "The Expected Utility Hypothesis and the Selection of Optimal Deductibles for a Given Insurance Policy," The Journal of Business, University of Chicago Press, vol. 42(2), pages 143-51, April.
  7. Helpman, Elhanan & Laffont, Jean-Jacques, 1975. "On moral hazard in general equilibrium theory," Journal of Economic Theory, Elsevier, vol. 10(1), pages 8-23, February.
  8. Green, Jerry & Sheshinski, Eytan, 1975. "Competitive inefficiencies in the presence of constrained transactions," Journal of Economic Theory, Elsevier, vol. 10(3), pages 343-357, June.
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