investigate the mechanisms behind this relationship using data on German pre-teen students. We show that (i) taller children are … better recommendations to taller students. This holds even when controlling for academic achievement and parental background … respect to education policy, our findings suggest that early school tracking might increase disadvantages for students with …

student performance in this region using unique international assessment data for sixth-grade students and their teachers. To … circumvent potential bias due to unobserved student heterogeneity, we exploit variation within students across math and reading …