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
標題	集団の拡大による集合財の自発的供給
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),85-100頁
著者・共著者	大林 真也
概要	The purpose of this study is to clarify how the increase in the number of members of a group affects cooperation. Most of the previous works focused on static one-shot games. This study, however, focuses on repeated games, more specificlly stochastic/dynamic games that enable us to analyze games in which the number of players changes, especially becomes larger, by degrees. In addition, we do not assume a simple way to increase in the number of players but assume Group Reputation Mechanism (hereafter GRM) in which the number of cooperating players in the group in the previous game affects how many players outside the group join the group. We find that GRM, in which the number of new members is proportion to the number of players who cooperate in the previous game, allows players to cooperate without any sanction in the pure collective goods which are characterized non-excludability and non-rivalness.
DOI	10.11218/ojjams.30.85
ISSN	09131442
NAID	130005163413