"Unlike in elementary schools, high school teacher effects may be confounded with unobserved track-level treatments (such as the AVID program) that are correlated with individual teachers. I present a strategy that exploits detailed course-taking information to credibly estimate the effects of...

Administrative data from a large and diverse community college are used to examine if underrepresented minority students benefit from taking courses with underrepresented minority instructors. To identify racial interactions we estimate models that include both student and classroom fixed...

"This paper uses a new administrative dataset of students at a large university matched to courses and instructors to analyze the importance of teacher quality at the postsecondary level. Instructors are matched to both objective and subjective characteristics of teacher quality to estimate the...

We examine whether and how teachers' major fields of study affect students' achievement, exploiting within-student variation across subfields in natural science (i.e., physics, chemistry, biology, and Earth science). Using middle-school students' data from the Trends in International Mathematics...