The Contributions of School Quality and Teacher Qualifications to Student Performance
利用北京初中摇号入学数据，估计学校固定效应对学生成绩的影响，发现学校质量与教师资格对学生成绩有同等重要的预测作用。
Abstract We use administrative data from the lottery-based open enrollment system in Beijing middle schools to obtain unbiased estimates of school fixed effects on student performance. To do this, we classify children in selection channels, with each channel representing a unique succession of lotteries through which a child was assigned to a school. Results show that school fixed effects are strong determinants of student performance. These fixed effects are shown to be highly correlated with teacher qualifications measured in particular by their official ranks. Teacher qualifications have about the same predictive power for student test scores as do school fixed effects.