This paper investigates the regional differences in the spread of COVID-19 infections in Germany. A machine learning selection procedure is used to reduce variables from a pool of potential influencing variables. The empirical analysis shows that both regional structural variables and regionally...

Donations and unpaid working are two important forms of non-market activities that are usually considered separately in the literature. The purpose of this paper is to empirically test hypotheses on determinants of giving to organizations. In particular, the importance of voluntary work for...