北大经院工作坊第365场
The Economics of Medical Procedure Innovation
医疗创新的经济学初探
劳动-健康经济学工作坊
主讲人：
Bingxiao Wu, Rutgers University(Assistant Professor)
主持老师：
（北大经院）石菊
（北大国发院）雷晓燕
参与老师：
（北大经院）秦雪征、王耀璟、袁野
（北大国发院）赵耀辉、李玲、刘国恩、张丹丹
时间：
2021年11月10日（周三）10:00-11:30
形式：
Zoom会议线上平台（若有意参会，请发送姓名、学院至manqihou@pku.edu.cn以获取会议链接，仅限北大师生）
主讲人简介：
Bingxiao Wu is an Assistant Professor in the Economics Department at Rutgers University. She is an applied microeconomist and her research focuses on health economics, industrial organization, and development economics. Her studies primarily involve medical innovation, physician reimbursement and incentives, and the market structure of health care industry. Her work has appeared in journals such as Management Science, Journal of Health Economics, Journal of Development Economics, JAMA Internal Medicine, and etc. She received her PhD from Northwestern University’s Kellogg School of Management and BS from Tsinghua University.
摘要：
This paper explores the economic incentives for medical procedure innovation. Using a proprietary dataset on billing code applications for emerging medical procedures, we highlight two mechanisms that could hinder innovation. First, the administrative hurdle of securing permanent, reimbursable billing codes substantially delays innovation diffusion. We find that Medicare utilization of innovative procedures increases nearly nine-fold after the billing codes are promoted to permanent (reimbursable) from provisional (non-reimbursable). However, only 29 percent of the provisional codes are promoted within the five-year probation period. Second, medical procedures lack intellectual property rights, especially those without patented devices. When appropriability is limited, specialty medical societies lead the applications for billing codes. We indicate that the ad hoc process for securing billing codes for procedure innovations creates uncertainty about both the development process and the allocation and enforceability of property rights. This stands in stark contrast to the more deliberate regulatory oversight for pharmaceutical innovations.
北大经院工作坊第366场
Productivity Loss amid Invisible Pollution
臭氧污染对劳动生产率的影响
生态、环境与气候经济学工作坊
主讲人：
邱筠（暨南大学经济与社会研究院助理教授）
主持老师：
（北大经院）季曦
参与老师：
（北大经院）章政、张博、李虹、张鹏飞、刘政文、梁远宁
（北大国发院）徐晋涛、王敏、邢剑炜、易媛媛
（北大现代农学院）刘承芳、侯玲玲、解伟、王悦
时间：
2021年11月10日（周三） 14：00-15：30
形式：
腾讯会议
会议号：499 550 377
主讲人简介：
邱筠，俄亥俄州立大学农业经济学博士，现为暨南大学经济与社会研究院助理教授，研究方向为环境经济、健康经济，关注气候变化和空气污染的社会经济影响，近年来在Journal of Environmental Economics and Management、Journal of Population Economics、Climatic Change等刊物上发表过文章。
摘要：
Ground-level ozone is a continuing problem worldwide, but research about the influences of ozone pollution on labor productivity in developing countries is insufficient. Couriers are important for the rapidly developing express delivery industry and e-commerce around the world. Yet, they are susceptible to the health impacts of ozone pollution due to their typical outdoor working environments. We investigate the effect of ozone pollution on outdoor worker productivity in the service sector using a unique panel dataset of courier productivities from a top-five express delivery company in China. Using an instrumental variable constructed from ozone pollution of upwind nearby cities, we find that a 1-standard-deviation increase in daily ozone pollution decreases courier productivity by 6.84%. The same increase in ozone in the previous 30 days decreases worker productivity by 23.7%. Our findings emphasize an under-researched but important part of the socioeconomic costs of ozone pollution and call for policy attention on coordinated management of ozone pollution and particulate matters in developing countries.
北大经院工作坊第367场
Can Affirmative Action Correct the Historical Wrong?
200 years of evidence from Civil Exams and University Admissions in China
平权行动能纠正历史错误吗？
来自中国两百年科举考试和高考的证据
发展与公共财政工作坊
主讲人：
曹思未（北京师范大学讲师）
主持老师：
（北大经院）刘冲
参与老师：
（北大国发院）李力行、席天扬
时间：
2021年11月10日（周三）14：00-15：30
地点：
国家发展研究院承泽园246教室
主讲人简介：
曹思未，北京师范大学讲师。曹思未的研究兴趣主要集中在创新经济学、经济地理学和中国经济。曾在《经济研究》、《世界经济》、《European Journal of Innovation Management》等国内外期刊发表学术论文多篇。
摘要：
There is a long held but untested belief that affirmative action will level the playing field and eventually be unnecessary at all. We exploit academic institutional changes in the history of China to provide direct support. We show that a 200-year place-based quota policy successfully raised academic competence for the historically disadvantaged regions even after the policy concluded. This implies human capital accumulation is sustainable without further affirmative action. Our theory rationalizes the findings by arguing affirmative action can raise human capital to a higher equilibrium. Strong intergenerational spillovers are a key mechanism for sustainable growth.
北大经院工作坊第368场
Welfare and Output with Income Effects and Taste Shocks
福利、产出与收入效应和品味冲击
宏观经济学工作坊
主讲人：
David Baqaee（加州大学洛杉矶分校助理教授）
主持老师：
（北大国发院）李明浩
参与老师：
（北大国发院）赵波、余昌华
（北大经院）陈仪、韩晗、李博、李伦
时间：
2021年11月11日（周四）9：00-10：30
形式：
ZOOM会议
会议号：931 0249 0110
密码：122368
主讲人简介：
David Baqaee是加州大学洛杉矶分校的经济学助理教授、CEPR 的研究附属机构和 NBER 的教职研究员。他的研究发现是聚合生产力和生产力聚合化、网络经济学和产业组织的宏观经济学。他的研究成果发表在主要期刊上，包括《美国经济评论》、《经济学季刊》、《计量经济学》、《欧洲经济学会杂志》和《货币经济学杂志》。
摘要：
We characterize how welfare responds to changes in budget sets and technologies when preferences are non-homothetic or subject to shocks, in both partial and general equilibrium. We generalize Hulten’s theorem, the basis for constructing aggregate quantity indices, to this context. We show that calculating the response of welfare to a shock only requires knowledge of expenditure shares and elasticities of substitution and (given these elasticities) not of income elasticities and taste shocks. We also characterize the gap between welfare and chain-weighted indices. We apply our results to long- and short-run phenomena. In the long-run, we show that if structural transformation is caused by income effects or changes in tastes, rather than substitution effects, then Baumol’s cost disease is twice as important for welfare. In the short-run, we show that standard deflators understate welfare-relevant inflation because product-level demand shocks are positively correlated with price changes. Finally, using the Covid-19 recession we illustrate the differences between partial and general equilibrium notions of welfare, and show that real consumption and real GDP are unreliable metrics for measuring welfare or production.
行业研究前沿课程系列第四期
银行业分析的基本方法
主讲人：
王剑
时间：
2021年11月11日（周四）18：40-20：30
地点：
北京大学第二教学楼304教室
主讲人简介：
国信证券金融业首席分析师；曾多次获评新财富、水晶球、金牛等最佳分析师奖项；著有《回归本源：我眼中的互联网金融》（2018年）、《王剑讲银行业：基本逻辑与分析方法》（2021年）
主持人：
锁凌燕（永利集团3044am官方入口教授）
主办单位：
永利集团3044am官方入口
北京大学中国保险与社会保障研究中心
北京大学中国金融研究中心
北大经院工作坊第369场
Teaching Them How to Fish? The Makings of Business Accelerators
授之以渔还是授之以鱼？
创业加速器的作用
计量、金融和大数据分析工作坊
主讲人：
陈川（威斯康辛大学博士后）
主持老师：
（北大经院）王熙
参与老师：
（北大经院）王一鸣、刘蕴霆
（北大国发院）黄卓、沈艳、张俊妮、孙振庭
（北大新结构）胡博
时间：
2021年11月12日（周五）10:00-11:30
形式：
腾讯会议
会议号：564 216 484
主讲人简介：
陈川，威斯康辛大学麦迪逊分校博士后。2019获圣路易斯华盛顿大学奥林商学院经济学博士学位，2013年取得该校MBA学位，本科毕业于新加坡南洋理工大学计算机工程系。研究领域主要为创新创业。
摘要：
One-third of early-stage venture financing currently goes to business accelerator-backed startups. We examine whether startups join accelerators to alleviate financing constraints or to improve human capital for long-term growth. Using a novel three-stage two-sided matching econometric framework, we quantify and compare explanatory powers of short-term financing prospects and long-term growth prospects for the revealed preference during the accelerator admission process. We find that short-term financing prospects explain 48% of the variations in the matching values, while variations of key five-year startup performance prospects can explain 96%.
学术午餐会第171期
Shell-Shocked Investors:
Earthquake Effect on Yield Spreads of Quasi-Municipal Bonds
"惊恐"中的投资者：地震灾害对准市政债券的定价效应
主讲人：
高昊宇（中国人民大学副教授）
主持老师：
高明（永利集团3044am官方入口副教授）
时间：
2021年11月12日（周五）12:30-14:00
地点：
永利集团3044am官方入口302会议室
主讲人简介：
高昊宇，现任中国人民大学副教授，博士生导师，中国人民大学“杰出学者”青年学者，第5届中国科协“青年人才托举工程”入选人。他分别于中国科学院数学与系统科学研究院和香港城市大学获得管理学与金融学博士学位，并曾在南洋理工大学和美联储亚特兰大分储短期访问。研究兴趣主要集中在公司金融、金融中介与金融市场、债务违约和评级、中国资本市场等方面。学术成果发表于Review of Financial Studies、 Journal of Financial Economics、Journal of Financial and Quantitative Analysis等国际顶级期刊。他的论文还曾获得12届亚太金融市场年会、31届亚洲金融学年会、第8届投资学年会、第18届金融系统工程与风险管理年会和首届银行与金融中介论坛等最佳论文奖。
摘要：
Using a comprehensive data set of earthquakes in China, this paper shows that investors increase the perceived risk of quasi-municipal bonds exposed to destructive earthquakes and require a significantly positive risk premium. Our results find that the effect is temporary and decreases with investors' prior knowledge of earthquake hazards, which supports the salience theory. This irrational pricing bias is larger when bonds have longer maturity, lower credit rating, and weaker government implicit guarantees. We exclude alternative explanations based on the financial underperformance of governments and firms in affected zones. Our findings reveal a novel bond pricing factor associated with sudden natural disasters.
供稿单位：永利集团3044am官方入口科研办公室
美编：初夏、兮哲
责编：量子、禾雨、予天
