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La Theorie Economique de L'auto-Protection

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  • Laffont, J.J.

Abstract

[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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Suggested Citation

  • Laffont, J.J., 1975. "La Theorie Economique de L'auto-Protection," Cahiers de recherche 7503, Universite de Montreal, Departement de sciences economiques.
    • Handle: RePEc:mtl:montde:7503
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    References listed on IDEAS

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    1. Edmond Malinvaud, 1974. "The Allocation of Individual Risks in Large Markets," International Economic Association Series, in: Jacques H. Drèze (ed.), Allocation under Uncertainty: Equilibrium and Optimality, chapter 8, pages 110-125, Palgrave Macmillan.
    2. 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 623-648, July-Aug..
    3. 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.
    4. 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.
    5. MOSSIN, Jan, 1968. "Aspects of rational insurance purchasing," LIDAM Reprints CORE 23, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    6. Malinvaud, E, 1973. "Markets for an Exchange Economy with Individual Risks," Econometrica, Econometric Society, vol. 41(3), pages 383-410, May.
    7. 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.
    8. Laffont, Jean-Jacques, 1976. "Court against moral hazard," Journal of Mathematical Economics, Elsevier, vol. 3(3), pages 269-283, December.
    9. 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 143-151, April.
    10. 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.
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    Cited by:

    1. François-Régis Mahieu, 1989. "Principes économiques et sociétés africaines," Revue Tiers Monde, Programme National Persée, vol. 30(120), pages 725-753.

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