This paper presents empirical evidence on immigration flows into the OECD countries during the period 1990-2000. Our results indicate that network effects are strong, but vary between different groups of welfare states and between countries according to the type of immigration policy being...

While there is considerable interest in understanding the climate-migration relationship, particularly in the context of concerns about global climatic change, little is known about underlying mechanisms. We analyze a unique and extensive set of panel data characterizing annual bilateral...

The eastern enlargements of the European Union (EU) and the extension of the free movement of workers to the new member states' citizens unleashed significant east-west migration flows in a labor market with more than half a billion people. Although many old member states applied transitional...

Using a matched employer-employee data-set, we analyze how workforce diversity in terms of cultural background, education and demographic characteristics affects the productivity of firms in Denmark. Implementing a structural estimation of the firms' production function (Ackerberg et al. 2006),...