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Utilité espérée "non additive" et observabilité des préférences. Les points de vue de Jacob Marschak et de Paul Samuelson

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  • Marc Willinger

Abstract

[fre] Cet article montre que certains développements de la théorie de l'utilité au cours du dernier quart de siècle avaient été largement entrevus par Marschak et par Samuelson dans leurs articles de 1950. Ces deux auteurs abordent la question de l'affaiblissement de l'axiome d'indépendance et s'interrogent sur les possibilités de réaliser des expériences pour tester la théorie proposée par Von Neumann et Morgenstern. Ils ont exploré, l'un et l'autre, les conséquences de l'abandon partiel de l'axiome d'indépendance, en concluante la nécessité de le conserver, mais pour des raisons distinctes. Par contre, les deux auteurs sont en accord quant à l'impossibilité de réaliser des expériences, une attitude qui les conduira à sous-estimer le rôle de l'expérimentation, malgré les tentatives de Marschak de développer cette méthodologie. [eng] Non-additive "expected utility " and observability of preferences: the positions of Jacob Marschak and Paul Samuelson. . We show that some of the developments of utility theory in the last quarter of the century had been expected to a large extent by Marschak and by Samuelson in their 1950 articles. Both of them investigated the weakening of the independence axiom and reflected on the possibility to test the theory developed by von Neumann and Morgenstem. In exploring the consequences of relaxing the independence axiom, they reached the conclusion that one could not get around the axiom, but for opposite reasons. But the two authors agreed that experimentation was not possible for testing expected utility theory, an attitude which will lead them to underestimate the role of experimentation, despite the efforts of Marschak to contribute to the development of that methodology.

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Bibliographic Info

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

Volume (Year): 51 (2000)
Issue (Month): 5 ()
Pages: 1153-1167

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Handle: RePEc:prs:reveco:reco_0035-2764_2000_num_51_5_410577

Note: DOI:10.2307/3503085
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Web page: http://www.persee.fr/web/revues/home/prescript/revue/reco

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