Abstract: Top-Manager von Großunternehmen gehören nach allgemeiner Einschätzung zu den Gewinnern der mit der Globalisierung verbundenen gesellschaftlichen und ökonomischen Umbrüche. Sind damit unerwünschte wirtschaftliche Machtspielräume und eine Privilegiengesellschaft entstanden? In...

This paper empirically analyzes the effects of a second generation rent control. We make use of an uncommon policy intervention in the German housing market and translate the generated variation into a difference-and-differences setup, augmented with elements of a discontinuity design, to...

Recent empirical studies suggest that there is a rising trend of market power across sectors in advanced economies. We contribute to this line of research by providing industry-specific evidence for German manufacturing industries, based on representative high-quality firm level data from...

This paper analyzes empirically the effects of a second generation rent control. We investigate the consequences of an uncommon policy intervention in the German housing market in 2015. We rely on a difference-and-differences setup, augmented with elements of a discontinuity-in-time design, to...

We explain the recent events in the German market for online access using a model of a regulated monopoly renting phone lines to retailers. Retailers offer either a linear or a flat tariff to consumers. Consumer heterogeneity leads to adverse selectiion. We show why market entry for flatrate...

Der vorliegende Beitrag erörtert die wichtigsten Herausforderungen, die sich durch die Digitalisierung stellen. Analysiert werden die Fragen, inwiefern die die Digitalisierung zu einer Monopolisierung von Märkten führt, wie das Kartellrecht nach der 9. GWBNovelle diese Befürchtungen...

This paper empirically analyzes the effects of a second generation rent control. We make use of an uncommon policy intervention in the German housing market and translate the generated variation into a difference-and-differences setup, augmented with elements of a discontinuity design, to...

The removal of the lower bound on the EUR/CHF exchange rate in January 2015 provides a unique setting to study the implications of a large and sudden appreciation in an otherwise stable macroeconomic environment. Using transaction-level data on non-durable goods purchases by Swiss consumers, we...

We use micro data on product prices linked to information on the firms that set them to test for selection effects (state dependence) in micro-level producer pricing. In contrast to using synthetic data from a canonical Menu-Cost model, we find very weak, if any, micro-level selection effects...