Whether Europe will be able to stand up to its internal and external challenges crucially depends on its ability to manage its internal mobility and inflows of international migrants. Using a unique expert opinion survey, we document that Europe needs skilled migrants, and skill mismatch is to...

This chapter summarizes the main trends, policies and empirical evidence regarding immigration in Europe. We start by providing descriptive evidence on long-term immigration trends and current characteristics of the immigrant populations in various important European destination countries and...

Theoretical arguments and previous country-level evidence indicate that immigrants are more fluid than natives in responding to changing labor shortages across countries, skill-groups or industries. The diversity across EU member states enables us to test this hypothesis across various...

The H-1B program allows firms in the United States to temporarily hire high-skilled foreign citizens. H-1B workers are highly concentrated among a small number of firms. We develop a theoretical model demonstrating that this phenomenon is an artifact of policy design: When the government...