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...

Unlike prototype immigration countries, Germany has attracted a large number of southern Europeans as temporary guestworkers in the 60s and 70s. Nevertheless, many of them have stayed on and intend to remain in Germany. I investigate whether these workers have become successfully integrated into...

While the entry of new immigrants into the German labour market is usually controlled by the local labour authorities, no such controls exist for contract workers (Werkvertragsarbeitnehmer), who are subject to national quotas which are fixed in the medium term. Therefore the ease of contract...