Throughout history, border walls and fences have been built for defense, to claim land, to signal power, and to control migration. The costs of fortifications are large while the benefits are questionable. The recent trend of building walls and fences signals a paradox: In spite of the...

Throughout history, border walls and fences have been built for defense, to claim land, to signal power, and to control migration. The costs of fortifications are large while the benefits are questionable. The recent trend of building walls and fences signals a paradox: In spite of the...

This contribution investigates the opportunities of migration for developing countries. The benefits of migration for sending countries are often undervalued. But migrants may foster trade, remittances, innovations, investments back home, and even return home at some time with better human...

Previous research on internal mobility has neglected the role of local identity contrary to studies analyzing international migration. Examining social identity and labor market outcomes in China, the country with the largest internal mobility in the world, closes the gap. Instrumental variable...

This paper examines the migration and labor mobility in the European Union and elaborates on their importance for the existence of the EU. Against all measures of success, the current public debate seems to suggest that the political consensus that migration is beneficial is broken. This comes...