Ex-post approaches to prioritarianism and sufficientarianism

Matthew D. Adler (), Walter Bossert, Susumu Cato () and Kohei Kamaga
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Matthew D. Adler: Duke Law School
Susumu Cato: Institute of Social Science, University of Tokyo

Theoretical Economics, Forthcoming

Abstract: Although sufficientarianism has been gaining interest as a theory of distributive justice in recent years, it has not been examined in the presence of risk. We propose an ex-post approach to sufficientarianism that has a strong link to ex-post prioritarianism. Both ex-post criteria are based on an axiom that we refer to as prospect independence of the unconcerned, a natural extension of the independence axiom known from the literature that focuses on situations with no risk. We characterize a class of ex-post prioritarian orderings as well as the corresponding class of ex-post sufficientarian orderings. In addition, we point out some important differences between these two ex-post criteria, and we examine how they fare when assessed in terms of specific ex-ante Paretian axioms.

Keywords: Sufficientarianism. prioritarianism; risk; ex-post approach; prospect independence of the unconcerned; axiomatic characterization (search for similar items in EconPapers)
JEL-codes: D31 D63 D71 D81 (search for similar items in EconPapers)
Date: 2025-03-17
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