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【3月17日讲座通知】Social Relationships and Peer Effects in Microloan Defaults

2023-03-15 08:55      

主讲嘉宾:Jaimie Wei-Hung Lien,山东大学特聘教授



嘉宾简介:Jaimie Wei-Hung Lien,山东大学特聘教授。2001年获得美国卫尔斯利女子学院经济数学学士学位,2005年获得美国加利福尼亚大学圣地亚哥分校经济硕士学位,2010年获得美国加利福尼亚大学圣地亚哥分校经济博士学位。研究领域包括行为经济学、实验经济学、应用微观经济学,研究主题涉及参照依赖、现时偏误、代表性偏误、社会型偏好、自我控制等重要行为现象。先后主持过国家自然科学基金项目、教育部科研项目、香港研究资助局项目,发表论文二十余篇。目前已有论文发表于Nature CommunicationsPNASAmerican Economic Review (Papers and Proceedings)Games and Economic BehaviorJournal of Economic Behavior and OrganizationExperimental Economics等国际知名期刊。曾获“中国信息经济学2016青年创新奖”、“中国信息经济学2018青年创新奖”和“中国信息经济学2011-2015理论贡献奖”。

Abstract: We study the magnitude and heterogeneity of peer effects in the market for microloans. To identify peer effects, we use the self-listed contact persons on the loan applications and exploit the geographic information from borrowers residential addresses. Using borrower-loan level data from a major microloan platform in China, we find that a listed contact persons default leads to an approximately 12.9% to 26.7% increase in the likelihood of a borrowers default. The peer effect is significant across all types of social relationships observed but varies in magnitude based on the strength of relationship between a borrower and their contact person. The magnitude from spouses as peers is the largest, 18.5% to 41.2%, while that from colleagues is 5.1%-11.4%, and that from regular friends is 6.3%-11.9%. On the other hand, we find no default increase when geographically close neighbors default. Evidence from a survey of microloan customers reveals a reported peer effect of similar order of magnitude as found in the actual loan data, while providing suggestions about the mechanism for the effect. Survey responses support both an information channel of social learning as well as norm degradation or acceptance of default following a friends default behavior as likely mechanisms for peer effects in default.