摘要：Nima Haghpanah is an associate professor of Economics at Penn State. Before joining Penn State in 2016, he received his PhD in Com
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北大经院工作坊第1117场
Good Data and Bad Data:
The Welfare Effects of Price Discrimination
主讲人：
Nima Haghpanah（Associate Professor of Economics at Penn State）
主持老师：
（北大经院）吴泽南、石凡奇
（北大国发院）胡岠
参与老师：
（北大经院）胡涛
（北大国发院）汪浩、邢亦青
（北大光华）翁翕、刘烁
时间：
2025年5月29日（周四）
10:30-12:00
地点：
北京大学经济学院302会议室
主讲人简介：
Nima Haghpanah is an associate professor of Economics at Penn State. Before joining Penn State in 2016, he received his PhD in Computer Science from Northwestern University in 2014 and was a postdoctoral associate at MIT from 2014 to 2016. He studies mechanism design, information design, and price discrimination.
摘要：
We ask when additional data collection by a monopolist to engage in price discrimination monotonically increases or decreases weighted surplus. To answer this question, we develop a model to study endogenous market segmentation subject to residual uncertainty. We give a complete characterization of when data collection is good or bad for surplus, which consists of a reduction of the problem to one with only two demand curves, and a condition for the two-demand-curves case that highlights three distinct effects of information on welfare. These results provide insights into when data collection and usage for price discrimination should be allowed.
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北大经院工作坊第1118场
The Rise of Platform and The Fall of Traditional Economy
数字经济工作坊
主讲人：
古定威（复旦大学管理学院副教授）
主持老师：
（北大经院）曹光宇
时间：
2025年5月30日（周五）
10:00-11:30
地点：
北京大学经济学院302会议室
主讲人简介：
Dingwei Gu is an associate professor of economics at the School of Management, Fudan University. His research interests focus on industrial organization and corporate finance, covering platform economics, digital economics, vertically related industries, and antitrust. His works have been published in the RAND Journal of Economics, Journal of Industrial Economics, and Journal of Corporate Finance.
摘要：
Platforms have become increasingly important to the global economy. In this paper, we study the impacts of a platform on the traditional economy where the merchants and consumers can conduct business even without the platform. By working as an additional valuable channel, the platform benefits consumers and society, but hurts merchants; more so if the platform becomes more valuable. The proportion of on-platform merchants is decreasing in platform value and merchant competition. In the traditional economy with platform, a more intense merchant competition can be harmful to consumers and society.
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北大经院工作坊第1119&1120场
The Epistemology of Risk Sciences: Cross-Disciplinary Definitions and Methodologies
主讲人：
冯润桓（清华大学经济管理学院）
贾若（北京大学经济学院）
李建平（中国科学院大学经济与管理学院）
栾胜华（中国科学院心理研究所）
庞珣（北京大学国际关系学院）
魏玖长（中国科学技术大学公共事务学院）
徐建华（北京大学环境科学与工程学院）
朱建明（中国科学院应急管理科学与工程学院）
主持老师：
（清华经管）冯润桓
（北大经院）贾若
（人大财金）陈泽
参与老师：
（人大财金）魏丽
（人大财金）许荣
（北大经院）郑伟
时间：
2025年5月30日（周五）
15:00-18:00
地点：
清华大学经济管理学院李华楼B502教室
内容：
本次研讨会特邀来自8个不同学科的专家，研讨各自领域研究框架、核心观点、方法论，随后开展讨论与问答。本讨论会旨在促进跨学科交流，分享不同领域关于风险科学研究的基本思想。同时，希望通过本讨论会推动合作研究，拟在讨论会内容基础上，共同撰写一篇跨学科综述论文，为不同背景学者提供风险科学研究的"全景式导引"。
供稿：科研与博士后办公室
美编：闻听
责编：度量、雨禾、雨田
来源：北京大学经济学院
