Economic theory suggests that high-skilled immigration generally has positive effects on the receiving economy. International student mobility is an important channel through which high-skilled immigrants arrive. The purpose of this paper is to identify some of the key determinants of...

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 paper sheds light on the labor market situation of ethnic minorities in the European Union. Facing a serious measurement challenge and lacking adequate data, we apply several measures of ethnicity and examine various data sources as well as secondary evidence. We find significant gaps...

This paper develops a model and derives novel testable implications of referral-based job search networks in which employees provide employers with information about potential job market candidates that they otherwise would not have. Using unique matched employer-employee data that cover the...

This paper provides a comprehensive description of the nature and extent of ethnic segregation in Germany. Using matched employer-employee data for the universe of German workers over the period 1975 to 2008, I show that there is substantial ethnic segregation across both workplaces and...

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...

The H-1B program allows skilled foreign-born individuals to work in the United States. The annual quota on new H-1B issuances fell from 195,000 to 65,000 for employees of most firms in fiscal year 2004. This cap did not apply to new employees of colleges, universities, and non-profit research...