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...

We formulate a simple model of optimal defensive disclosure by a monopolist facinguncertain antitrust enforcement and test its implications using unique data on defensivedisclosures and patents by IBM during 1955-1989. Our results indicate that strongerantitrust enforcement leads to more...

This report studies the importance of efficiency gains from horizontal mergers. A general theme throughout this report is that efficiency gains, and their pass-on to consumers, may vary substantially from merger to merger. For this reason it seems appropriate to reconsider current practice in...

Die sogenannte Ministererlaubnis als Teil der deutschen Fusionskontrolle repräsentiert wahrscheinlich das umstrittenste Instrument sowohl in der juristischen als auch in der ökonomischen Fachdiskussion. Vereinfachend ausgedrückt ermöglicht die Ministererlaubnis dem Bundeswirtschaftsminister,...

In this paper I describe a method for analyzing mergers in industries in which it is more cost effective to close capacity than to idle it. The method can be used to define markets, to assess the likelihood of competitive effects and to evaluate divestitures. I also discuss the method’s data...

In the U.S., unlike much of the rest of the world, the mixing of banking and commerce is largely prohibited. One exception is industrial loan companies (ILCs), state chartered depository institutions some of which are owned by commercial parents. In 2006, the FDIC put a moratorium on the...

In most jurisdictions, antitrust fines are based on affected commerce rather than on collusive profits, and in some others, caps on fines are introduced based on total firm sales rather than on affected commerce. We uncover a number of distortions that these policies generate, propose simple...

New Zealand is a small open economy that is remote from all major markets. The smallness and remoteness of New Zealand combine to imply that this country has, at least quantitatively, distinctive features for the regulation of economic activity by competition law. The isolation and small size of...

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...

We propose a simple theory of predatory pricing, based on scale economies and sequential buyers (or markets). The entrant (or prey) needs to reach a critical scale to be successful. The incumbent (or predator) is ready to make losses on earlier buyers so as to deprive the prey of the scale it...