Der vorliegende Aufsatz untersucht den Einfluss von Aufsichtsratsvernetzungen auf die Entwicklung der Vorstandsbezüge von DAX-Unternehmen. Die kombinierte Anwendung von Methoden der sozialen Netzwerkanalyse und der Panelökonometrie erleichtert die Erfassung der Struktur der...

In this study we use import penetration as a proxy for foreign competition in order to empirically analyze (1) the impact of foreign competition on managerial compensation, (2) differences in the impact between Germany and the U.S. and (3) whether the impact of import penetration is driven by...

The paper aims at assessing the costs and benefits of antitrust enforcement. The analysis starts with an investigation of why competition is typically worth protecting followed by a collection of empirical evidence which shows that competition actually needs protection by antitrust policy in...

Within the last three years, Google has acquired YouTube and DoubleClick and has attempted to control part of Yahoo!'s search advertising business. Two of the deals have not raised antitrust concerns by competition authorities. I review these deals with a focus on consumer welfare. Consumers are...

This paper studies the aggregate substitution and expansion effects triggered by changes in input prices, in a context where firms supply a homogenous commodity and compete in quantities à la Cournot. We derive a sufficient condition for the existence of a Cournot equilibrium and show that this...

Normalising CES production functions in the calibration of basic dynamic models allows to choose technology parameters in an economically plausible way. When variations in the elasticity of substitution are considered, normalisation is necessary in order to exclude arbitrary effects. As an...