Die Hartz-Reformen stellten zweifelsohne eine bedeutende Wende in der Entwicklung des Arbeitsmarktes dar. Obwohl die Reformen aus vier Teilen bestanden, war es hauptsächlich die Hartz-IV-Reform, die zu intensiven politischen und öffentlichen Debatten führte. Andrey Launov und Klaus Wälde...

The number of unemployed workers in Germany decreased dramatically from its peak in February 2005 at over 5.2 million to 3.6 million by 2008. At the same time, employment increased by 1.2 million. Most theoretical and empirical analyses of this episode assume that a worker leaving unemployment...

We model the evolution of the number of individuals that are reported to be sick with COVID-19 in Germany. Our theoretical framework builds on a continuous time Markov chain with four states: healthy without infection, sick, healthy after recovery or after infection but without symptoms and...

Many countries consider the lifting of restrictions of social contacts (RSC). We quantify the effects of RSC for Germany. We initially employ a purely statistical approach to predicting prevalence of COVID19 if RSC were upheld after April 20. We employ these findings and feed them into our...

Die COVID-19-Epidemie wird in Deutschland im optimistischen Szenario mindestens bis Juli 2020 dauern, im normalen Szenario bis August. Öffentliche Maßnahmen wie Kontaktverbote flachen den Anstieg der Zahl der Erkrankungen temporär ab und verlängern die Dauer der Epidemie. In der Spitze sind...

We use the synthetic control method to analyze the effect of face masks on the spread of Covid-19 in Germany. Our identification approach exploits regional variation in the point in time when face masks became compulsory. Depending on the region we analyse, we find that face masks reduced the...