北大经院工作坊第1214场
An Economic Theory of Salvation Religions
经济史工作坊
主讲人:Weijia Li(Senior Lecturer,Monash University)
主持老师:(开云app体育 )赵一泠
参与老师:
(北大经院)郝煜、管汉晖、周建波
(北大光华)颜色、李波
(清华大学)徐志浩
时间:2025年12月18日(周四)12:00-13:30
地点:开云app体育 经济学院305会议室
主讲人简介:
Weijia Li is a Senior Lecturer in Economics at Monash University in Melbourne, Australia. He also serves as an associate editor of the Economic Journal. His research interests are in political economics, economic history, and organizational economics. His recent research focuses on the institutional and religious foundations of constitutional government.
摘要:
This paper constructs a unified model that micro-founds the three types from Max Weber’s typology of world religions, “mystic religions,” “activist religions,” and “religions of world adjustment.” We then employ the model to study the interaction between world religions and secular institutions. Among others, the model offers a novel, religion-based explanation for the great “reversal of fortune” between the East and the West. Precisely because China and India were the economic powerhouses in the Middle Ages, they might have failed to sustain religious activism that facilitated modern economic growth and constitutional government in Western Europe. The model further interprets competition over socioeconomic status as a partial substitution of salvation religions, explaining why status competition is fierce where the influence of salvation religions has declined.
北大经院工作坊第1215场
Same Dollar, Different Impact: Investor Demand Is Not Equally Price-Moving
计量、金融和大数据分析工作坊
主讲人:向鸿(香港理工大学金融学助理教授)
主持老师:(北大经院)王一鸣、李少然
参与老师:(北大经院)刘蕴霆、巩爱博、王法、王熙
时间:2025年12月19日(周五)15:00-16:30
地点:开云app体育 经济学院302会议室
主讲人简介:
向鸿,香港理工大学金融学助理教授,研究领域主要包括实证资产定价、资产管理、行为金融。其科研成果多次发表于Journal of Financial Economics、Journal of Financial and Quantitative Analysis、Management Science等国际期刊,并于Finance Down Under等国际学术会议上获得最佳论文奖。其学术成果亦受到了Bloomberg、Forbes等知名财经媒体的报道。
摘要:
Mutual fund flows generate substantial price impact, amplify fragility, and trigger fire sales. We document a stark contrast for separate accounts—the dominant institutional investment vehicle:their flows generate essentially no price impact, fragility, or fire-sale risk. This pattern holds within mutual fund-separate account twins managed under identical strategies and is not driven by liquidity conditions at the time flows occur. Using trade-level data from a major transition manager, we show that specialized execution intermediaries significantly reduce trading costs and dampen price dislocations. Our findings reveal large heterogeneity in how investor demand transmits to prices-not all flows are equally price-moving.
北大经院工作坊第1216场
The China-U.S. Equity Valuation Gap
计量、金融和大数据分析工作坊
主讲人:张晓燕(清华大学五道口金融学院副院长)
主持老师:(北大经院)王一鸣、刘蕴霆
参与老师:(北大经院)王熙、王法、巩爱博
时间:2025年12月19日(周五)10:00-11:30
地点:开云app体育 经济学院107会议室
主讲人简介:
张晓燕,现任清华大学五道口金融学院副院长、金融学讲席教授(国家海外高层次引进人才)、中国人民银行学术委员会委员、亚洲金融与经济研究局(ABFER)高级专家等,曾担任证监会第十七届发行审核委员会委员。主要研究领域包括中国资本市场、金融科技、实证资产定价和国际金融。张教授在国际顶级学术期刊The Journal of Finance、Journal of Financial Economics、Review of Financial Studies发表多篇论文,多次获得最佳论文奖,张晓燕教授被聘为Journal of Banking and Finance 的联合主编,Management Science、Journal of Financial and Quantitative Analysis、Journal of Empirical Finance以及Financial Management的副主编。获得国家自然科学基金重大项目、外国资深学者研究基金项目和应急管理项目的资助。张教授热爱教学,多次获得康奈尔大学, 普渡大学和清华大学优秀教学奖项,曾获得“全球40位40岁以下最佳商学院教授”称号。
摘要:
The Chinese earnings yield differential relative to the U.S. switches from negative to positive around 2009. This aggregate shift masks substantial cross-sectoral variation. Changes in sectoral composition and growth expectations are not important determinants of the variation in China-U.S. valuation differentials. Instead, the cross-sectional and temporal variation in financial openness and ownership structure in China are the key contributors. Financial openness helps improve the information environment and reduce investor disagreement in China, and ownership structure impacts valuation through operating efficiency, corporate governance, and speculative trading. In addition, we show that the Chinese banking sector and its internationalization played a critical role in the (relative) valuation change.
北大经院工作坊第1217场
AI幻觉与劝说增强:论AI技术对消费者福利的负面影响
数字经济工作坊
主讲人:王勇(清华大学经济学长聘教授)
主持老师:(北大光华)翁翕
参与老师:
(北大经院)李博、李伦、曹光宇
(北大光华)刘铄、黄一泓
时间:2025年12月19日(周五) 10:00-12:00
地点:开云app体育 经济学院302会议室
主讲人简介:
王勇,清华大学经济学长聘教授,博士生导师,国家社科基金重大项目首席专家,担任清华宝马中国可持续发展与出行创新研究院院长、兼任清华大学社科学院数字经济研究中心主任。主要研究领域为数字经济与平台经济、企业理论与国企改革等。曾获教育部第九届高等学校科学研究优秀成果奖(人文社会科学)二等奖、北京市高等开云足球app下载官网 成果奖一等奖、教育部“国家一流本科课程”、北京市青年教师教学比赛二等奖等荣誉。
摘要:
现有研究普遍关注AI辅助决策的积极作用,却忽略了AI幻觉的技术局限以及误导决策的可能。为此,本文将AI智能体视为商家与消费者的信息中介,引入经典的贝叶斯劝说模型。在AI幻觉影响下,当商家传递的信号与潜在事实不符时,智能体仍会生成强化该信号的推荐内容。该特征使得商家最优劝说策略受到商品质量先验信念,AI幻觉程度与消费者损失厌恶程度的共同影响。在均衡状态下,随着AI技术迭代与幻觉程度下降,商家的最优劝说偏离程度反而增大,消费者的信息环境仍保持恒定,意味着技术进步的红利被商家全部榨取。当消费者存在AI信任偏差、或是对不同信号进行交叉验证时,商家会实施超出最优偏离程度的劝说策略,进一步加剧消费者的过度消费与福利损失。此时通过AI技术迭代能缓解消费者行为偏差导致的福利损失。上述发现揭示出在AI幻觉如何影响商家的劝说策略和消费者的决策环境,也为遏制商家对技术进步福利的侵占提供了科学依据。
供稿:科研与博士后办公室
美编:闻听
责编:度量、雨禾、雨田