主题：Twisting the Bands before Knowing the Bar
主讲人：杨湘黔 湖南大学
主持人：赵文博 暨南大学
时间：2025年5月23日（周五）上午10:30-12:00
地点：暨南大学石牌校区经济学院大楼（中惠楼）323室
摘要
We study how an information designer can manipulate the (asymmetric) information available in an adverse selection problem, without knowing the selection rule. In the latter problem, a principal decides whether to allocate an object to an agent using the threshold rule of Ben-Porath, Dekel and Lipman (2014), with the threshold unknown to the information designer. A novelty of our analysis is that the information design problem is nonlinear, distinguishing it from existing frameworks in which feasible information exhibits a linear relationship with objective functions. We identify the optimal information from the agent’s perspective, which involves pooling the agent’s types over certain intervals into coarse signals. Unlike previous findings where pooling occurs exclusively at the top of the type distribution, our results show that the relevant intervals may be at the top, in the middle, or even empty, depending on how the principal’s threshold is distributed. Our results apply, for example, when colleges manipulate (twist) students’performance records (bands) to influence how employers evaluate students, before knowing the recruitment threshold.
主讲人简介
杨湘黔，湖南大学经济与贸易学院副教授。新加坡国立大学经济系博士。研究兴趣为博弈论、微观经济理论等；论文发表在国际顶尖学术期刊Journal of Economic Theory和International Economic Review，主持国家自然科学青年基金。
欢迎感兴趣的师生参加！
校对|赵文博
责编| 彭毅
初审| 李仲达
终审发布| 何凌云
（来源：暨南大学经济学院微信公众号）
