Suchmaschinen ermöglichen Nutzern einen schnellen Zugang zu Informationen, die sie konkret suchen oder die sie durch die Suchmaschine entdecken. Sie haben sich zu wichtigen Informationsintermediären entwickelt. Aufgrund ihrer zentralen Rolle in der Informationsvermittlung und der...

This paper shows that the provision of consumer rights can decrease welfare when some consumers remain ignorant of these rights. We find that consumers uninformed about a mandated warranty demand excessively safe products in some circumstances. In other circumstances, uninformed consumers buy...

Who does, and who should initiate costly certification by a third party under asymmetric quality information, the buyer or the seller? Our answer - the seller - follows from a nontrivial analysis revealing a clear intuition. Buyer-induced certification acts as an inspection device,...

Who does, and who should initiate costly certification by a third party under asymmetric quality information, the buyer or the seller? Our answer - the seller - follows from a nontrivial analysis revealing a clear intuition. Buyer-induced certification acts as an inspection device,...

The EU General Data Protection Regulation (GDPR) of 2018 introduced stringent transparency rules compelling firms to disclose, in accessible language, details of their data collection, processing, and use. The specifics of the disclosure requirement are objective, and its compliance is easily...

The paper develops a four-step framework to detect anticompetitive horizontal mergers. In the first step, an estimate of the impact of the merger on the market price needs to be derived. Subsequent, the second step of the framework has to assess whether such a predicted price increase would be...

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...

Im Jahre 2005 fand im Rahmen eines OECD Policy Roundtables ein intensiver Meinungsaustausch der Mitgliedsstaaten zu dem Thema 'Evaluation of the Actions and Resources of the Competition Authorities' statt. Eine wesentliche Erkenntnis der Gespräche bestand in der Feststellung, dass...

The last couple of years have seen an increasing interest in critical loss analysis, both, in academia and in practice. This development is documented by various research papers, high-level exchanges between antitrust experts as well as an increasing number of case decisions which make use of...

A central motivating factor for studying price markups is their effect on consumer welfare. Reported estimates of (firm-level) price markups in the literature, however, are often focused on industry or cross-country comparisons. These treat different industries equally rather than based on how...