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« Utilité cardinale » dans le certain et choix dans le risque

  • Denis Bouyssou
  • Jean-Claude Vansnick

[fre] « Utilité cardinale » dans le certain et choix dans le risque . . Le but de cet article est d'étudier les liens existant entre la notion de fonction d'utilité au sens de von Neumann et Morgenstern et celle de fonction de valeur mesurant les différences de préférence. Cette question a donné lieu à de nombreuses controverses dont nous rappelons l'importance. On présente ensuite un ensemble de résultats donnant, en particulier, les conditions nécessaires et suffisantes pour que les deux fonctions soient identiques à une transformation affine positive près. On étudie enfin les implications de ces résultats sur un plan théorique et en matière d'aide à la décision et de calcul économique. [eng] « Cardinal utility » and risky choice . . The aim of this paper is to study the links between the notion of von Neumann-Morgenstern utility function and that of value function measuring preference differences. We fkst recall the heated debates that took place around this question. We then present a number of results giving, in particular, the necessary and sufficient conditions for these two functions to define the same interval scale. These results are then analyzed both from a theoretical and prescriptive point of view.

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Article provided by Programme National Persée in its journal Revue économique.

Volume (Year): 41 (1990)
Issue (Month): 6 ()
Pages: 979-1000

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Handle: RePEc:prs:reveco:reco_0035-2764_1990_num_41_6_409249
Note: DOI:10.2307/3501894
Contact details of provider: Web page: http://www.persee.fr/web/revues/home/prescript/revue/reco

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