Gift Contagion in Online Groups: Evidence from WeChat Red Packets

主 讲：刘 潇（清华大学经济管理学院）

主 持：刘瑞明（中国人民大学国家发展与战略研究院）

时 间：2020年10月21日（周三）14:00-15:30

地 点：中国人民大学崇德西楼（原科研楼A座）815会议室

摘要：Gifts are important instruments to bond interpersonal relationships. Using 36 million online red packets on WeChat, we employ a natural experiment approach to identify  in-group contagion of gift giving. We find that, on average, receiving one more dollar causes a recipient to send 18 cents back to the group within the subsequent 24 hours. Moreover, this effect is much stronger for "luckiest draw'' recipients, which suggests a group norm for gift giving. Additionally, we find that gift contagion is affected by in-group friendship network properties, such as the number of in-group friends and the local clustering coefficient.

主讲人简介：刘潇，清华经管学院经济系副教授。于2006年获得中国人民大学学士学位，2012年获得密歇根大学博士学位。主要研究兴趣包括：实验和行为经济学，市场设计和博弈论，论文发表在Management Science, Games and Economic Behavior等杂志。

中国人民大学国家发展与战略研究院