Social Preference Under Twofold Uncertainty - HEC Paris - École des hautes études commerciales de Paris Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2016

Social Preference Under Twofold Uncertainty

Résumé

We investigate the conflict between the ex ante and ex post criteria of social welfare in a novel axiomatic framework of individual and social decisions, which distinguishes between a subjective and an objective source of uncertainty. This framework permits us to endow the individuals and society not only with ex ante and ex post preferences, as is classically done, but also with interim preferences of two kinds, and correspondingly, to introduce interim forms of the Pareto principle. After characterizing the ex ante and ex post criteria, we present a first solution to their conflict that amounts to extending the former as much possible in the direction of the latter. Then, we present a second solution, which goes in the opposite direction, and is our preferred one. This solution combines the ex post criterion with an objective interim Pareto principle, which avoids the pitfalls of the ex ante Pareto principle, and especially the problem of "spurious unanimity" discussed in the literature. Both solutions translate the assumed Pareto conditions into weighted additive utility representations, and both attribute common individual probability values only to the objective source of uncertainty.
Fichier non déposé

Dates et versions

hal-01985397 , version 1 (17-01-2019)

Licence

Copyright (Tous droits réservés)

Identifiants

  • HAL Id : hal-01985397 , version 1

Citer

Philippe Mongin, Marcus Pivato. Social Preference Under Twofold Uncertainty. 2016. ⟨hal-01985397⟩
47 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More