Based on multivariate linear regression models, we analyze the effect of the lunar cycle and the number of sunspots occurring on a particular day on the number of births using social security data and controlling for a number of other potential confounders. The daily number of births between...

Of all countries in Western Europe, Germany has experienced the most intense influx of immigrant labor after World War II. An important characteristic of this immigrant flow has been its heterogeneity both with respect to the motivation to migrate and to skill endowments. The skills and, thus,...

Die Nationale Akademie der Wissenschaften Leopoldina und der Rat für Nachhaltige Entwicklung (RNE) legen ein gemeinsames Positionspapier vor, in dem Wege zur Klimaneutralität bis 2050 vorgestellt werden. Leopoldina und RNE zeigen darin Handlungsoptionen für die erforderlichen Veränderungen...