マツモト　ヨシエ   
  松本　良恵
   所属   淑徳大学  人文学部 人間科学科
   職種   助教
言語種別 英語
発行・発表の年月 2014/09
形態種別 学術論文
査読 査読あり
標題 In Search of Homo economicus
執筆形態 共著
掲載誌名 Psychological science
掲載区分国外
巻・号・頁 25(9),pp.1699-1711
著者・共著者 Yamagishi, T., Li, Y., Takagishi, H., Matsumoto, Y., & Kiyonari, T.
Toshio
概要 Homo economicus, a model for humans in neoclassical economics, is a rational maximizer of self-interest. However, many social scientists regard such a person as a mere imaginary creature. We found that 31 of 446 residents of relatively wealthy Tokyo suburbs met the behavioral definition of Homo economicus. In several rounds of economic games, participants whose behavior was consistent with this model always apportioned the money endowed by the experimenter to themselves, leaving no share for their partners. These participants had high IQs and a deliberative decision style. An additional 39 participants showed a similar disregard for other people's welfare, although they were slightly more altruistic than those in the Homo economicus group. The psychological composition of these quasi-Homo economicus participants was distinct from that of participants in the Homo economicus group.