The geographical definition of markets is a crucial challenge for economists. With the availability of multiple tools to compare prices, the idea of market definition is entering a new era as it infiltrates the digital sphere. Since December 1st, 2013 the market transparency unit of the Federal...

The German petrol station market is characterized by strong intraday price cycles, which probably correspond to the well-known Edgeworth cycles. The prices go up strongly in the late evening or in the middle of the night, fall relatively heavily in the early morning and then go up and down...

How effective are direct government policies for boosting exports? We answer this question with a structured overview of 34 studies covering 26 countries around the world, and in doing so, we provide nine findings. We show export boosting policies are heterogenenous by design and include export...

This paper examines how collective bargaining through unions and workplace codetermination through works councils shape labour market imperfections and how labour market imperfections matter for employer wage premia. Based on representative German plant data for the years 1999-2016, we document...

Hardcore cartels that make agreements on quantities, prices, or areas, risk receiving both administrative fines from the cartel authority and civil law claims for damages. In addition to these risks, there is a recurring legal policy discussion that cartelist should also face criminal law...

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...

Competition on the German gasoline market is of interest for economists, competition authorities and the general public alike. In this paper, I analyse how constantly lower gasoline prices in Poland affect the prices set in the German border region. More precisely, I estimate the impact of one...

Internet users generously disclose personal information to consume supposedly "free" digital services despite severe privacy concerns-a phenomenon termed privacy paradox. Humanities have thoroughly studied this discrepancy in attitude and behavior, yet have not developed a conclusive explanation...