Good teachers are the backbone of a successful education system. Yet, in developing countries, teachers' content knowledge is often inadequate. This study documents that primary school math teachers in the department of Moraz'an in El Salvador only master 47 percent of the curriculum they teach....

This paper estimates the causal impact of teacher content knowledge on student achievement in Mozambique, a low-income country where a large share of fourth-graders fail to meet the minimum requirements of literacy and numeracy. I use nationally representative data from the Service Delivery...

I develop a novel method for estimating teacher value added which controls for non-random student-teacher sorting without having to control for lagged grades in standardised tests. To do so, I exploit "networks'' of teachers - teachers from the same subject who are observed in classrooms with a...

The nation's largest charter management organization is the Knowledge is Power Program (KIPP). KIPP schools are emblematic of the No Excuses approach to public education, a highly standardized and widely replicated charter model that features a long school day, an extended school year, selective...

This paper examines teachers’ mobility in response to exogenous changes in the credentials of their students using data from Stockholm high schools. I explore a major admission reform that lead to the reshuffling of students between schools within the municipality of Stockholm. The results...

This paper examines the job mobility of teachers with different skills using matched employer-employee data from Swedish secondary schools. In addition to standard quality measures, I have access to population-wide data on cognitive and non-cognitive assessments of males born in 1951 or later....

This paper investigates how the precision and stability of a teacher's value-added estimate relates to the characteristics of the teacher's students. Using a large administrative data set and a variety of teacher value-added estimators, it finds that the stability over time of teacher...

The typical measure used by researchers and school administrators to evaluate teachers is based on how the students' achievement increases after being exposed to the teacher, or based on the teacher's "value-added''. When teacher value-added is heterogeneous across her students, the typically...