This paper examines the effects of sorting and mixing on academic performance of high school students in South Korea …

-dimensional nonparametric regression. We apply the proposed estimators to estimate the effects of summer school on the distribution of school …

Hierarchical and comprehensive school systems are compared with respect to efficiency. At given ability, a student …'s probability of not completing school rises with increasing mean ability in class. Both school systems can yield identical average … failure rates. Given that output losses in case of failure are stronger for more talented students, the comprehensive school …