講演者
氏名：Kwon, Hyoji
所属：兵庫県立大学
資格：准教授
開催概要
開催日時： 2025年4月29日（火）17時00分－18時40分
開催方法： 早稲田大学早稲田キャンパス3号館9階909
講演報告
講演タイトル：Democracy or In-Group Bias? Determinants of Cooperation in Sanctioning Systems
講演概要：This research proposal presents an experimental study that investigates the interplay between democratic decision-making and in-group bias within sanctioning systems. Focusing on a public goods game framework, the study examines how cooperation is influenced when punishment mechanisms are determined by a democratic voting process rather than random assignment. Four experimental conditions are designed: (1) punishers selected via democratic election versus random assignment, and (2) punishers originating from either the in-group or the out-group. By comparing these treatments, the research aims to identify the conditions that most effectively promote cooperative behavior and to determine which factor—democratic legitimacy or in-group favoritism—exerts a stronger influence when the two are in conflict. The findings are expected to shed light on the challenges modern institutions, such as democracy and market economies, may face when implemented in societies with strong in-group ties, suggesting that cultural in-group biases might sometimes constitute a more significant barrier than the institutional design itself.
