ソン　ショウシュウ   Shao Chin Sung   宋　少秋    所属   青山学院大学  理工学部 経営システム工学科    職種   教授
言語種別	日本語
発行・発表の年月	2005/12
形態種別	学術雑誌
標題	On the Axiomatic Characterization of 'Who is a J?'
執筆形態	共同
掲載誌名	LOGIQUE ＆ ANALYSE (National Centre for Logical Investigation)
巻・号・頁	101-112頁
著者・共著者	*Shao-Chin Sung and Dinko Dimitrov
概要	Recent work by Kasher and Rubinstein(1997) considers the problem of group indentification from a social choice perspective. These authors provide an axiomatic characterization of a liberal aggregator whereby the group consist of those and only those individuals each of which views oneself a member of the group. In the present paper we show that the five axioms used in Kasher and Rubinstein's characterization of the liberal aggregator are not independent and prove that only three of their original axioms are necessary and sufficient for the required characterization.