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La recherche d'une mesure objective des inégalités, sur le modèle des mesures des grandeurs physiques est vaine : la mesure des inégalités dépend, en effet, de l'opinion des membres de la société en matière de justice distributive. Il est donc souhaitable que les opinions qui...
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Les mesures traditionnelles des inégalités considèrent l'aversion collective à l'égard des inégalités comme un paramètre déterminé a priori. En particulier, ce paramètre est maintenu constant lorsqu'on effectue des comparaisons internationales ou intertemporelles. Nous proposons ici...
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We provide possibility results on the aggregation of beliefs and tastes for Monotone, Bernoullian and Archimedian preferences of Cerreia-Vioglio, Ghirardato, Maccheroni, Marinacci, and Siniscalchi (2011). We propose a new axiom, Unambiguous Pareto Dominance, which requires that if the...
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Since von Neuman and Morgenstern's (1944) contribution to game theory, the expected utility criterion has become the standard functional to evaluate risky prospects. Risky prospects are understood to be lotteries on a set of prizes. In which case a decision maker will receive a precise prize...
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Will employment instability be the employment pattern tomorrow? Many studies support this view. This analysis is first discussed. Statistical data don't allow concluding to a general trend of employment instability during the 80's. These data show that different figures of mobility have been...
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