We develop a simple model of managing a system subject to pollution damage under risk of an abrupt and random jump in …. -- environmental pollution ; optimal management ; catastrophic transitions ; uncertainty ; adaptation ; mitigation …

whether the signalling value differs between the migrants and non-migrants in the German labour market. Starting from the … administrative data from the German Federal Employment Agency. -- sorting theory ; human-capital theory ; returns to education …

We study the impact of short-term exposure to ambient air pollution on the spread and severity of COVID-19 in Germany … patients (80+ years): higher levels of air pollution by one standard deviation 3 to 12 days after developing symptoms increase … deaths by 30 percent (males) and 35 percent (females) of the mean. In addition, air pollution raises the number of confirmed …