We investigate whether time-persistent cultural borders impede economic exchange across regions of the same country. To measure cultural differences we evaluate, for the first time in economics, linguistic micro-data about phonological and grammatical features of German dialects. These data are...

This study examines the long-memory properties of German energy price indices (specifically, import and export prices, as well as producer and consumer prices) for hard coal, lignite, mineral oil and natural gas adopting a fractional integration modelling framework. The analysis is undertaken...

This article presents the first nonparametric test whether German works councils go hand-in-hand with higher labour productivity or not. It distinguishes between establishments that are covered by collective bargaining or not. Results from a Kolmogorov-Smirnov test for first-order stochastic...

This study presents the first empirical test with German establishment level data of a hypothesis derived by Helpman et al. (2004) in a model that explains the decision of heterogeneous firms to serve foreign markets either through exports of foreign direct investment: only the more productive...