オオバヤシ　シンヤ   OBAYASHI Shinya   大林　真也    所属   青山学院大学  社会情報学部 社会情報学科    職種   准教授
言語種別	日本語
発行・発表の年月	2015
形態種別	学術雑誌
査読	査読あり
招待論文	招待あり
標題	集団評判効果を通じた協力的制度の発生
執筆形態	単独
掲載誌名	理論と方法
掲載区分	国内
出版社・発行元	数理社会学会
巻・号・頁	30(1),51-68頁
著者・共著者	大林 真也
概要	The purpose of this article is to clarify the relationship between the emergence of institutions and the dynamics of groups, focusing on the institution for helping in community unions. As previous works pointed out, helping behavior in community unions is the exchanges based on downward indirect reciprocity. Due to the time-gap of this exchange, the maintenance of the helping behavior requires the development and stability of the group. At the beginning of the unions where the members apparently have small incentives, how the institution for cooperation can emerge? On the other hand, we observed protest activity (institution) promote people to join the community unions. Thus we attempt to analyse the interdependence between the emergence of the institution and group dynamics. For this goal, we present a game theoretical model including the dynamically change in group size and the behavior of players, applying“group reputation effect”.
DOI	10.11218/ojjams.30.51
ISSN	09131442
NAID	130005163406