We exploit rules of class formation to identify the causal effect of increasing the number of immigrants in a classroom on natives test scores, keeping class size constant (Pure Composition Effect). We explain why this is a relevant policy parameter although it has been neglected so far. We show...

We develop a model that gives some microfoundation to the impact of residential neighborhood on children’s educational attainment and then test it using the UK National Child Development Study. We find that, for high-educated parents, the better the quality of the neighborhood in terms of...

We investigate the racial gap in test scores between white and non-white students in Britain both in levels and differences across the school years. We find that there is a substantial racial gap in test scores, especially between ages 7 and 11, and a less severe one between ages 11 and 16. It...