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...

This study uses a randomized control trial (RCT) to evaluate a new program for increased labor market integration of refugees. The program has immediate and substantial short-run effects on employment, corresponding to around 15 percentage points. The effect lasts for three years but eventually...