北大经院工作坊
第1198场
Are Natural Disasters Disastrous for Education? Evidence from Seven Asian Countries
经院-全健院
“健康与劳动经济学”工作坊
主讲人：Minhaj Mahmud（Asian Development Bank’s Economic Research and Development Impact Department）
主持老师：（北京大学全球健康发展研究院）潘聿航
参与老师：
（北大经院）秦雪征、施新政、石菊、姚奕、袁野、王耀璟、庄晨、梁远宁
（北大全健院）刘国恩、黄成、孙宇、吕蓓妮、林淑君、林昊翔、杨佳楠、崔知涵、蒋少翔
时间：2025年11月27日（周四）10:00-11:30
地点：北京大学经济学院107会议室
主讲人简介：
Minhaj Mahmud is a Senior Economist at the Asian Development Bank’s Economic Research and Development Impact Department (ERDI). He works in the Economic Analysis and Operation Support (EREA) team supporting economic analysis of health and social sector projects as well as impact evaluation of ADB projects. His research areas include behavioral economics, health economics, and development economics, with a focus on field experiments and impact evaluation in health, education, labor, environment, climate change, gender, and political economy issues. His current work focuses on causal links between climate risks and human capital, and elderly health. He holds a Ph.D. in Economics from the University of Gothenburg. He serves on the editorial board of Journal of International Development.
摘要：
This paper investigates the impact of natural disasters on children’s educational outcomes in seven Asian countries. Linking novel survey data on children aged 5 to 17 years to time- and geo-coded disaster records, we construct time-varying disaster exposure measures for the first 1,000 days from conception, the most recent years, and the period in between. We analyze exposures to several types of disasters. The results show significant negative effects of early-life disaster exposure on school enrollment. The impact of recent disaster exposure on math-test scores is limited, while early-life exposure shows persistent negative effects. The results reveal important heterogeneities with policy implications.
北大经院工作坊
第1199场
Robust Auctions for Selling Multiple Goods
微观理论经济学工作坊
主讲人：Wanchang Zhang（Assistant Professor of CUHK, Shenzhen）
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11月27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：
Wanchang Zhang received his Ph.D. in Economics from the University of California, San Diego. He previously earned a Master’s degree in Economics from Kyoto University and a Bachelor’s degree in Economics from Xiamen University. His research focuses on microeconomic theory, particularly mechanism design and in-formation design. His job market paper is currently under revise & resubmit at the American Economic Review.
摘要：
I study a mechanism design problem for selling multiple goods to multiple bidders under minimal informational assumptions. Specifically, I assume the designer only knows upper bounds on bidders’ values for each good, with no additional distributional in-formation. Adopting a minimax regret approach, I define the expected regret of a mechanism, given a joint distribution over value profiles and an equilibrium, as the difference between the full surplus and the expected revenue. The designer aims to find a minimax regret mechanism——one that minimizes the worst-case expected regret across all possible joint distributions and equilibria. I show that a separate second-price auction with random reserves achieves this objective for general upper bounds. In this mechanism, the designer conducts independent auctions for each good, with each auction being a second-price auction with random reserves.
北大经院学术午餐会第206期
生产网络中的碳定价政策减排溢出效应
主讲人：陈占明（中国人民大学应用经济学院教授）
主持老师：高明（北京大学经济学院长聘副教授）
时间：2025年11月28日（周五）12:30-14:00
地点：北京大学经济学院305会议室
主讲人简介：
陈占明，中国人民大学应用经济学院教授、博士生导师，副院长。北京大学工学、经济学学士及理学博士。入选国家级青年人才项目，获得国家级教学成果奖二等奖、第九届高等学校科学研究优秀成果奖（人文社会科学）青年成果奖。主要研究方向为能源经济与政策、投入产出分析、跨境直接投资。在国内外高水平学术期刊发表论文90余篇，在Web of Science数据库已被引用超过4300次，个人H因子36。入选斯坦福全球2%顶尖科学家榜单“终身科学影响力排行榜”及“年度科学影响力排行榜”；担任海淀区党外知识联谊会常务理事、中国投入产出学会常务理事等。
摘要：
碳排放权交易体系（ETS）是应对气候变化的核心政策工具，其行业覆盖范围的有限性意味着减排效应可能通过生产网络跨部门传导，但这一机制仍是理论与政策评估中的关键盲点。本研究首先从理论上探究了ETS政策冲击如何通过生产网络关联引起跨部门减排效应。随后，利用中国ETS试点政策作为准自然实验，并结合上市公司供应链信息与企业税收调查数据，采用多时点双重差分方法识别了减排溢出效应。实证结果显示，ETS政策通过减少被溢出企业的化石能源投入并引起产出收缩，使得其碳排放平均下降18.06%，且这一影响在网络关联更强或暴露于更强监管的企业中更为显著。最后，本研究校准了生产网络一般均衡模型以量化全国碳市场政策的溢出效应。反事实模拟结果显示，电力热力部门纳入碳市场的减排效果中溢出减排贡献达到7.40%。
供稿：科研与博士后办公室
美编：雨田
责编：度量、雨禾、初夏
