Does a high regional concentration of immigrants of the same ethnicity affect immigrant children's acquisition of host-country language skills and educational attainment? We exploit the exogenous placement of guest workers from five ethnicities across German regions during the 1960s and 1970s in...

Since the mid-1960's the Netherlands has had an immigration surplus, mainly because of manpower recruitment from Turkey and Morocco and immigration from the former Dutch colony of Surinam. Immigrants have a weak labor market position, which is related to their educational level and language...