ミヤギシマ　カナメ   MIYAGISHIMA Kaname   宮城島　要    所属   青山学院大学  経済学部 経済学科    職種   教授
言語種別	英語
発行・発表の年月	2022/02
形態種別	学術雑誌
査読	査読あり
標題	Efficiency, equity, and social rationality under uncertainty
執筆形態	単独
掲載誌名	Economic Theory
掲載区分	国外
出版社・発行元	Springer
巻・号・頁	73,pp.237-255
概要	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.