MIYAGISHIMA Kaname
   Department   Aoyama Gakuin University  Department of Economics, College of Economics
   Position   Professor
Language English
Publication Date 2022/02
Type Academic Journal
Peer Review Peer reviewed
Title Efficiency, equity, and social rationality under uncertainty
Contribution Type Single
Journal Economic Theory
Journal TypeAnother Country
Publisher Springer
Volume, Issue, Page 73,pp.237-255
Details In a simple model where agents’ monetary payoffs are uncertain, this paper examines the aggregation of subjective expected utility functions which are interpersonally noncomparable. A maximin social welfare criterion is derived from axioms of efficiency, ex post equity, and social rationality, combined with the independence of beliefs and risk preferences in riskless situations (Chambers and Echenique in Games Econ Behav 76:582–595, 2012). The criterion compares allocations by the values of the prospects composed of the statewise minimum payoffs evaluated by the certainty equivalents. Because of this construction, the criterion is egalitarian and risk averse.