We explore whether early childhood human-capital investments are complementary to those made later in life. Using the Panel Study of Income Dynamics, we compare the adult outcomes of cohorts who were differentially exposed to policy-induced changes in pre-school (Head Start) spending and...

To explore whether schools' causal impacts on test-scores measure their overall impact on students, we exploit quasi-random school assignments and data from Trinidad and Tobago to estimate the causal impacts of individual schools on several outcomes. Schools' impacts on high-stakes tests are...

This paper evaluates the first year of Harvard's Financial Aid Initiative, which increased aid and recruiting for students from low income backgrounds. Using rich data from the Census and administrative sources, we estimate family incomes for the vast major of plausible applicants from the U.S....

This study investigates the role of social networks in aligning the incentives of economic agents in settings with incomplete contracts. We study the New York City taxi industry where taxis are often leased and lessee-drivers have worse driving outcomes than owner-drivers as a result of a moral...

I investigate the importance of the match between teachers and schools for student achievement. I show that teacher effectiveness increases after a move to a different school, and I estimate teacher-school match effects using a mixed-effects estimator. Match quality "explains away" a quarter of,...

We exploit arguably exogenous train schedule changes in Washington DC to investigate the relationship between public transportation provision, the risky decision to consume alcohol, and the criminal decision to engage in alcohol-impaired driving. Using a triple differences strategy, we provide...

Using longitudinal elementary school teacher and student data, we document that students have larger test score gains when their teachers experience improvements in the observable characteristics of their colleagues. Using within-school and within-teacher variation, we further show that a...

We estimate the longer-run effects of attending an effective high school (one that improves a combination of test scores, survey measures of socio-emotional development, and behaviors in 9th grade) for students who are more versus less educationally advantaged (i.e., likely to attain more years...

Using exogenous secondary school assignments to remove self-selection bias to schools and peers within schools, I credibly estimate both (1) the effect of attending schools with higher-achieving peers, and (2) the direct effect of short-run peer quality improvements within schools, on the same...

I analyze the effects of a program that pays both 11th and 12th grade students and teachers for passing scores on Advanced Placement exams on college outcomes. Using a difference-in-differences strategy, I find that affected students of all ethnicities attend college in greater numbers, have...