Harsanyi's aggregation theorem with incomplete preferences

Eric Danan, Thibault Gajdos () and Jean-Marc Tallon

Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) from HAL

Abstract: We provide a generalization of Harsanyi (1995)'s aggregation theorem to the case of incomplete preferences at the individual and social level. Individuals and society have possibly incomplete expected utility preferences that are represented by sets of expected utility functions. Under Pareto indifference, social preferences are represented through a set of aggregation rules that are utilitarian in a generalized sense. Strengthening Pareto indifference to Pareto preference provides a refinement of the representation.

Keywords: utilitarianism; Incomplete preferences; aggregation; expected multi-utility; Préférences incomplètes; agrégation; espérance d'utilités multiples; utilitarisme (search for similar items in EconPapers)
Date: 2012-12
New Economics Papers: this item is included in nep-cdm, nep-mic and nep-upt
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Published in 2012

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