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Social Aggregation Without the Expected Utility Hypothesis

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Author Info
Charles Blackorby (University of Warwick -)
David Donaldson (University of British Columbia -)
Philippe Mongin (LEEP - Laboratoire d'econometrie de l'école polytechnique - CNRS : UMR7657 - Polytechnique - X)

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Abstract

L'article examine les conditions qui permettent de satisfaire simultanément les versions ex ante et ex post du principe de Pareto, lorsqu'on cesse d'imposer l'hypothèse de l'utilité espérée aux préférences individuelles et sociales. Avec des probabilités subjectives qui peuvent varier, on obtient trois théorèmes d'impossibilité sans avoir à faire cette hypothèse. Lorsque les probabilités sont "objectives" (identiques pour tous), on obtient un théorème de caractérisation pour les préférences (Théorème 4). Celles des individus sont compatibles non seulement avec l'utilité espérée subjective, mais aussi avec certaines variantes non linéaires, notamment "l'utilité anticipée". Les préférences sociales sont en général du type séparable et pondéré. Ce résultat est à comparer au théorème d'agrégation de Harsanyi, qui part de l'hypothèse d'utilité espérée "objective" pour les individus et l'observateur.

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Paper provided by HAL in its series Working Papers with number hal-00242932_v1.

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Date of creation: 2004
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Related research
Keywords: Utilité espérée; Utilité anticipée; Séparabilité; Principe de Pareto; Economie du bien-être ex ante et ex post;

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

  1. Blackorby, Charles & Donaldson, David & Weymark, John A., 1999. "Harsanyi's social aggregation theorem for state-contingent alternatives1," Journal of Mathematical Economics, Elsevier, vol. 32(3), pages 365-387, November. [Downloadable!] (restricted)
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  2. Gilboa, I. & Samet, D. & Schmeidler, D., 2001. "Utilitarian Aggregation of Beliefs and Tastes," Papers 2001-17, Tel Aviv.
    Other versions:
  3. Hammond, Peter J, 1981. "Ex-ante and Ex-post Welfare Optimality under Uncertainty," Economica, London School of Economics and Political Science, vol. 48(191), pages 235-50, August. [Downloadable!] (restricted)
  4. Mongin, P & d'Aspremont, C, 1996. "Utility Theory and Ethics," Papers 9632, Paris X - Nanterre, U.F.R. de Sc. Ec. Gest. Maths Infor..
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  5. Epstein, Larry G & Segal, Uzi, 1992. "Quadratic Social Welfare Functions," Journal of Political Economy, University of Chicago Press, vol. 100(4), pages 691-712, August. [Downloadable!] (restricted)
  6. John C. Harsanyi, 1955. "Cardinal Welfare, Individualistic Ethics, and Interpersonal Comparisons of Utility," Journal of Political Economy, University of Chicago Press, vol. 63, pages 309. [Downloadable!] (restricted)
  7. Mongin Philippe, 1995. "Consistent Bayesian Aggregation," Journal of Economic Theory, Elsevier, vol. 66(2), pages 313-351, August. [Downloadable!] (restricted)
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  8. Lucas, Robert Jr., 1972. "Expectations and the neutrality of money," Journal of Economic Theory, Elsevier, vol. 4(2), pages 103-124, April. [Downloadable!] (restricted)
  9. Edi Karni & Zvi Safra, 2002. "Individual Sense of Justice: A Utility Representation," Econometrica, Econometric Society, vol. 70(1), pages 263-284, January. [Downloadable!] (restricted)
  10. Hammond, P.J. & , ., 1987. "Consequentialist foundations for expected utility," CORE Discussion Papers 1987016, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  11. Ben-Porath, Elchanan & Gilboa, Itzhak & Schmeidler, David, 1997. "On the Measurement of Inequality under Uncertainty," Journal of Economic Theory, Elsevier, vol. 75(1), pages 194-204, July. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Blanchard, michel & Blanchard, frederic, 2007. "Optimism, Pessimism, and the Gains from Trade," MPRA Paper 6342, University Library of Munich, Germany. [Downloadable!]
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