Summary Several destination countries still adopt general immigration policies, and are characterized by lower returns to education than the countries of origin of the migrants. These two stylized facts challenge the literature on the beneficial brain drain which demonstrates that migration can...

SARS-CoV-2, the coronavirus, spread across Germany within just a short period of time. Seroepidemiological studies are able to estimate the proportion of the population with antibodies against SARS-CoV-2 infection (seroprevalence) as well as the level of undetected infections, which are not...