Ability tracking creates a homogenous learning environment within the classroom, by segregating high-performing and low-performing students into different groups. This paper exploits a unique policy change in South Korea combined with comprehensive micro dataset to measure the causal...

Using quasi-randomised data from South Korea's high school equalisation policy area, we show that school-provided after-school classes reduce students' time spent in private tuition and the associated household expenditure, as well as increase their likelihood of college attendance without any...

We use unique survey data linked to nearly a decade of administrative welfare data to examine the relationship between early marijuana use (at age 14 or younger) and young people's educational outcomes. We find evidence that early marijuana use is related to educational penalties that are...

Suspension from school is a commonly-used, yet controversial, school disciplinary measure. This paper uses unique survey data to estimate the impact of suspension on the educational outcomes of those suspended. It finds that while suspension is strongly associated with educational outcomes, the...