Cooperation under and over the shadow of inequality

主讲嘉宾

张焕人

报告人简介：

张焕人，南丹麦大学副教授，研究中综合运用实验方法，博弈论，计算建模与实证分析来探讨人类与组织的行为规律。他的主要研究领域包括风险与不确定性下的决策行为，策略性互动，以及个体与组织的学习机制。其研究成果发表在多种国际权威期刊上，包括Games and Economic Behavior,ResearchPolicy,Journal of Experimental Social Psychology,Personality and Social Psychology Bulletin和Nature Scientific Reports。现任Frontiers in Behavioral Economics副主编。

论文简介：

Cooperation is essential for tackling major societal challenges,and extensive research shows that longer expected interaction durationsthe"shadow of te future"enhance cooperative behavior. Yet most studies assume that cooperation yields equal benefits for all parties,even though unequal gains are common in real-world interactions.Howthis"shadow of inequality"affects cooperation in indefinitely repeated settings remains unclea Across three experiments,we examine how inequality shapes cooperation,gradualism,and responsiveness to increased continuation probabilities.Study1 shows that when mutual cooperation produces unequal payoffs,behavior closely mirrors that in payoff-equivalent symmetric settings,suggesting limited influence of inequality concerns.Study2 finds that introducing a medum contrbution level fosters gradualism and cooperation in symmetric games,but in asymmericnvironments iequality ndermines ths steppig-stone mechanism and makes cooperation more fragile.Study3reveals adifferentdynamic:wheninequality stems from mutual defection rater tan cooperation,cooperationis drivenby how unattractive defectionis and may even be enhanced by inequality.Togethertheseresults clary whenand how inequality matters in repeated interactions.They demonstrate that the effects of inequality depend on its source and the strategic context,offering new insight into cooperationin environments with heterogeneous gains

活动时间：2025年12月19日 星期五 上午 9:30-11:00

活动地点：劝学楼345小会议室

主办单位：金融学院，实验经济学实验室

欢迎广大教师，博士研究生，硕士研究生参加！