演讲者：刘冲博士（
今年秋季入职8797威尼斯老品牌
）
时间：4月17日（周五）中午12:30
地点：经院302教室
刘冲博士2007年毕业于北大数学科学学院，博士阶段就读于光华，2013年毕业后到清华经管做博士后。他的研究兴趣是公共财政和税收、发展经济学与产业组织理论。
职业生涯尚未开启，刘冲已是一位声名远扬的青年学者。他利用电商数据做的研究发表在International Journal of Industrial Organization。此外，还在CER，经济研究，经济学季刊，世界经济，管理科学学报，金融研究，经济学报，南开经济研究等一系列国内一流学报发表论文。发表总计十三篇，担任过四项研究基金的主持人。刘冲加盟我院，会大大地加强咱们学院在微观实证和中国问题研究上的实力。
这周五，他将为我们带来题为 “More Trusting, Less Trust?”的讲座。
演讲题目：More Trusting, Less Trust? An Investigation of Early E-commerce in China
摘要: Trust is vital for market development, but how can trust be enhanced in an online marketplace? A common view is that more trusting of buyers may help to build seller trustworthiness. This paper highlights a possibility that encouraging buyer trusting may lower seller trustworthiness in equilibrium. In particular, we set up a rational expectation model in which a marketplace uses buyer protection to promote buyer trusting. We show that it is possible for buyer protection to reduce trust in equilibrium and even hinder market expansion because it triggers differential entry between honest and strategic sellers and may induce more cheating from strategic sellers. Using a large transaction-level data set from the early years of Eachnet.com (an eBay equivalent in China), we find evidence that is consistent with this theoretical possibility. Stronger buyer protection leads to less favorable evaluation of seller behavior and is associated with slower market expansion. These findings suggest that a trust-promoting policy aiming at buyer trusting may not be effective if it is not accompanied by additional incentives to improve seller trustworthiness.
A. 和嘉宾共进午餐
为了扩大本院师生和这些嘉宾的交流机会，我们准备了一份online sign-up sheet。如果您对嘉宾感兴趣，您可以登记自己的姓名和联系方式，与嘉宾在经院地下咖啡厅共进午餐。
登记的地址是 http://www.wejoinin.com/sheets/rfrcd （教育网需要连外网，系统无法识别中文，所以要用英文填写）如果您对刘冲老师感兴趣，现在就可以行动起来了。
预约了的朋友，请在周五中午11:15，到经院三楼中间的沙发处，咱们会齐了去吃饭。如果您没赶上，可以直接去经院地下咖啡厅找我们。
B. 订餐
一如既往，院级seminar提供午餐。
1、
请有意用餐者发邮件至专用邮箱mylunch_sepku@126.com，主题格式设为“订餐——姓名”，取消订餐也请发邮件至该邮箱，主题格式设为“取消订餐——姓名”。订餐及取消订餐的截止时间均为午餐会当日上午9时整。
2、为了保持午餐会的良好气氛，我们将于会前十五钟开始发放午餐，会前五分钟结束发放。敬请用餐者至少提前五分钟到会，迟到者请会后领取。
3、为了避免浪费，午餐将严格按照订餐名单发放。
