北大经济史学名家系列讲座第145讲
凯恩斯定律与萨伊定律：相悖还是相容——兼论供给侧改革与需求侧管理关系
主讲人：
方福前（中国人民大学经济学院教授）
主持人：
周建波（北京大学经济学院经济史学系，系主任、教授）
评论人：
张旭（中国社会科学院经济研究所，教授）
张琦（中国社会科学院经济研究所，副研究员）
时间：
2021年6月8日（周二） 10：00-12：00
形式：
线下：经济学院107会议室
线上：腾讯会议，会议号：516 290 286
主讲人简介：
方福前，经济学博士，中国人民大学杰出学者特聘教授，讲席教授，博士生导师。主要研究领域为宏观经济理论与政策。个人著作主要有《从<货币论>到<通论>：凯恩斯经济思想的发展》、《公共选择理论》、《当代西方经济学主要流派》、《中国式供给革命》，在《中国社会科学》、《经济研究》、《管理世界》等国内外期刊发表论文260余篇。现兼任中华外国经济学说研究会顾问，北京外国经济学说研究会名誉会长，国家社科基金学科规划评审组专家，马克思主义理论研究与建设工程首席专家。先后获中国人民大学十大教学标兵、（首届）十大科研标兵和（首届）十大师德标兵称号。首届（2003年）国家级教学名师。享受国务院特殊津贴。
主办方：
北京大学经济学院经济史学系
北京大学社会经济史研究所
北京大学外国经济学说研究中心
北大经院工作坊第301场
财务激励、医生行为和患者福利：基于医生薪酬自然实验的研究
劳动-健康经济学工作坊
主讲人：
赵昕（对外经济贸易大学副教授）
主持老师：
（北大经院）袁野
（北大国发院）张丹丹
参与老师：
（北大经院）秦雪征、王耀璟、石菊
（北大国发院）赵耀辉、李玲、刘国恩、雷晓燕
时间：
2021年6月9日（周三）10：00-11：30
地点：
北京大学经济学院606会议室
主讲人简介：
赵昕，2016年博士毕业于美国科罗拉多大学博尔德分校经济系，现任对外经济贸易大学副教授。主要研究领域包括健康经济学，产业经济学，应用微观经济学。专注研究公立医院管理与改革，药品市场竞争与创新，养老产业发展等问题。曾在Journal of Health Economics, International Journal of Industrial Organization, Health Economics等发表论文。主持和参与多项国家自然科学基金等国家级项目。担任Production and Operations Management, International Journal of Industrial Organization, Health Economics等期刊审稿人。
摘要：
The efficient incentivization of physicians is a central question of health economics. In this paper, we answer this question using a randomized remuneration reform. Applying a difference-in-differences design to a unique, granular dataset, we find that physicians in the treatment group perform 3.2 percentage points (21%) more surgeries, costing the patients 3.9% more per day, at the expense of a 1.4 percentage point reduction in recovery rates. A closer examination unveils large heterogeneity in responses across physicians, patients, and types of utilization: (1) Physicians who are young, female, low-rank, and hold high education degrees are more responsive to the increased financial incentives. (2) Patients covered by more generous insurance contracts experience the sharpest spike in monetary costs, while those uninsured shoulder the cost of reduced health outcomes. (3) Medical procedures see faster growths than diagnostic tests, whereas prescriptions do not experience any significant change.
北大经院工作坊第302场
中国污染移民对生产率的影响
发展与公共财政工作坊
主讲人：
Ran Song（新加坡国立大学助理教授）
主持老师：
（北大国发院）席天扬
参与老师：
（北大国发院）张晓波、李力行
（北大经院）刘冲
时间：
2021年6月9日（周三） 20：00-21：30
形式：
腾讯会议 ID：669 214 656
主讲人简介：
Ran Song is an assistant professor of economics at Yale-NUS College, National University of Singapore. Before joining Yale-NUS, he was a postdoctoral associate at Yale University and Harvard University, and a visiting scholar at the National Bureau of Economic Research (NBER). His primary research fields are environmental economics and labor economics.
摘要：
Migration and pollution are two defining features of China’s impressive growth performance over the last 30 years. In this paper we study how pollution-induced migration affects productivity and welfare across Chinese cities. We document a robust pattern in which skilled workers emigrate more in response to pollution than the unskilled. Their greater sensitivity to air quality holds up in cross-sectional variation across cities, panel variation with individual fixed-effects, and when instrumenting for pollution using distant power-plants upwind of cities, or thermal inversions that trap pollution. Pollution therefore changes the spatial distribution of skilled and unskilled workers, which results in higher returns to skill in cities that the educated migrate away from. We quantify the loss in aggregate productivity due to this re-sorting by estimating a model of demand and supply of skilled and unskilled workers across Chinese cities. Counterfactual simulations from the estimated model show that reducing pollution would increase productivity through spatial re-sorting by approximately as much as the direct health benefits of clean air. Physical and institutional restrictions on mobility exacerbate welfare losses. People’s dislike of pollution explains a substantial portion of the wage gap between cities.
北大经院工作坊第304场
Asset Bubbles and Financial Friction
宏观经济学工作坊
主讲人：
王晨曦（中国人民大学汉青经济与金融高级研究院助理教授）
题目：
Asset Bubbles and Financial Friction（资产泡沫和金融摩擦）
主持人：
王熙（北京大学经济学院助理教授）
时间：
2021年6月11日（周五）10：00-11：30
地点:
经济学院305会议室
主讲人简介：
王晨曦，中国人民大学汉青经济与金融高级研究院助理教授。2020年获得纽约大学经济学博士学位，此前获得了哥伦比亚大学金融工程硕士学位。主要研究领域包括宏观经济、货币政策与货币搜寻理论。
摘要：
I study the impact of financial friction on asset bubbles in an infinite horizon model where rational asset bubbles serve as a store of value and a collateral. Financial friction is characterized from two aspects, the interest rate spread and the loan-to-deposit ratio, which affect the existence of bubbles, its steady-state size and its dynamics in different ways. The impact of financial friction depends on the role of asset bubbles in the economy. When asset bubbles only serve as a store of value (collateral), smaller financial friction not only generates smaller (larger) bubbles in the steady state, but also dampens (amplifies) the fluctuations after the bubble collapses, improving (undermining) the stability of the economy. When both roles are involved, the impact of financial friction depends on the relative importance of the two roles. Bubble size tends to be the largest when financial friction is at an intermediate level. The impact of monetary policies on bubble size depends on the role of bubbles and the type of policy instruments.
