In the early 21st century Europe is confronted with an ageing population, stagnating or even declining native populations, high unemployment and in the most key countries also with slow economic growth. At the same time Europe remains one of the prime destinations of international migration....

Programmes aimed at reducing the presence of unauthorized immigrants are often at the core of the migration policy debate in host countries. In recent years, a growing body of empirical literature has attempted to understand the effect of lacking legal status on immigrants’ outcomes and...