北大经院工作坊第626场
Myopia Peer Effects: Evidence from School-Aged Children in Rural China
“经院-全健院”
健康与劳动经济学工作坊
主讲人：史炜（暨南大学经济与社会研究院副教授）
主持老师：秦雪征（北京大学经济学院教授）
参与老师：
（北大经院）石菊、姚奕、王耀璟、Kevin Devereux、梁远宁、庄晨
（北大全健院）刘国恩、孙宇、潘聿航、吕蓓妮、林昊翔
时间：2023年4月17日（周一）10：00-11：30
线下地点：北京大学经济学院107会议室
线上形式：ZOOM会议
会议号：756 016 3457
密码：221221
主讲人简介：
史炜，暨南大学经济与社会研究院副教授，博士生导师，美国俄亥俄州立大学经济学博士。主要研究领域为微观计量经济学，关注空间计量模型、网络数据分析等计量方法的理论与应用研究。研究成果发表于International Economic Review, Journal of Econometrics, Journal of Urban Economics, Journal of Population Economics, China Economic Review等国际权威期刊，论文获得2020年度Journal of Population Economics最佳论文奖。主持1项国家自然科学基金青年基金项目和1项面上项目、1项教育部人文社会科学青年基金项目。
摘要：
This paper provides the first study estimating the effect of being exposed to social environment with the prevalence of myopia on children's vision in the context of rural areas from the developing world. The analysis is built on a longitudinal dataset of school-aged children with detailed vision test data and school records in rural areas of northwestern China during 2015-2019. We exploit random class assignment of children graduating from primary schools into junior high schools to identify the causal effects of myopic peers in classes on children's myopia onset and progression in the following years. Myopia peer effects are distributed in a non-linear way where spillover effects are observed for children with poor vision in social environment with worse average peer vision. Referral of myopic students to ophthalmologists dampens the peer effects, suggesting that health information provision can mitigate the negative peer influences.
北大经院工作坊第627场
Convergence Across Castes
（跨种姓融合）
宏观经济学工作坊
主讲人：Chenyu Hou（香港中文大学深圳管理与经济学院助理教授）
主持老师：（北大国发院）李博
参与老师：
（北大国发院）赵波、余昌华、李明浩
（北大经院）陈仪、韩晗、李伦
时间：2023年4月17日（周一）10：10-11：40
地点：北京大学国家发展研究院承泽园131会议室
主讲人简介：
Chenyu Hou 在不列颠哥伦比亚大学的温哥华经济学院获得博士学位。现任香港中文大学深圳管理与经济学院助理教授。他的研究兴趣是宏观经济学和货币经济学，具体主题与预期形成、信息获取和宏观发展有关。
摘要：
India has witnessed a remarkable wage catch-up by the historically disadvantaged scheduled castes and tribes (SC/STs) towards non-SC/ST levels during the period 1983-2012. To provide a structural explanation for the catch-up, we develop a multi-sector, heterogenous agent model where individuals differ in innate ability as well as their caste identity. Castes differ in their costs of schooling and accessing sectoral labor markets. This induces caste-based talent misallocations of agents in schooling and employment. Using the model, we show that sectoral productivity growth during 1983-2012 can explain 72 percent of the observed wage convergence between the castes. Rising education and sectoral reallocation of workers induced by the productivity growth are the primary drivers of this predicted convergence. We estimate significant welfare costs of the talent misallocations induced by the caste distortions.
供稿：科研与博士后办公室
美编：兮哲
责编：度量、雨禾、雨田
