which school principals were provided with estimates of the performance of individual teachers in raising their students …The evidence that productivity varies greatly across teachers has given rise to the idea that student achievement data … separation rises for teachers with low performance estimates, and, in line with this change in attrition patterns, student …

separation and productivity in schools, increasing turnover for teachers with low performance estimates and producing small test …

which school principals were provided with estimates of the performance of individual teachers in raising their students …The evidence that productivity varies greatly across teachers has given rise to the idea that student achievement data … separation rises for teachers with low performance estimates, and, in line with this change in attrition patterns, student …

alternatively certified teachers in the New York City public schools. On average, the certification status of a teacher has at most … among teachers with different certification status, and the impact on student achievement of hiring teachers with …

alternatively certified teachers in the New York City public schools. On average, the certification status of a teacher has at most … among teachers with different certification status, and the impact on student achievement of hiring teachers with …