Das Instrument der Ministererlaubnis ist ein vieldiskutierter Sonderfall in der deutschen Wettbewerbspolitik, bei welchem der Bundeswirtschaftsminister einen vom Bundeskartellamt (BKartA) untersagten Zusammenschluss bei Vorliegen besonderer Gründe im Nachhinein doch noch erlauben kann. Im...

Standard analysis of mergers in oligopolies along the lines of the popular Farrell-Shapiro-Framework (FSF) relies regarding its policy conclusions sensitively on the assumption that rational agents will only propose privately profitable mergers. If this assumption held, a positive external...

This paper analyzes the world web of mergers and acquisitions (M&As) using a complex network approach. We use data of M&As to build a temporal sequence of binary and weighted-directed networks, for the period 1995-2010 and 224 countries. We study different geographical and temporal aspects of...

We examine the strategic use of Corporate Social Responsibility (CSR) in imperfectly competitive markets. The level of CSR determines the weight a firm puts on consumer surplus in its objective function before it decides upon supply. First, we consider symmetric Cournot competition and show that...

We study the dual relationship between market structure and prices and between market structure and investment in mobile telecommunications. Using a uniquely constructed panel of mobile operators’ prices and accounting information across 33 OECD countries between 2002 and 2014, we document...