This survey examines recent developments in economic research relating to antitrust, paying specific attention to research in the areas of collusion and merger enforcement. Research relating to both collusion and mergers has made significant advances in the last twenty years. With respect to...

This paper studies the coordinated effects of the merger between American Airlines and USAirways by examining the extent to which the connecting prices of the nonmerging legacy carriers(Delta and United) evolved when the merger eliminated Advantage Fares, a connecting flight pricediscounting...

This paper provides a theory of strategic innovation project choice by incumbents and start-ups which serves as a foundation for the analysis of acquisition policy. We show that prohibiting acquisitions has a weakly negative innovation effect. We provide conditions determining the size of the...

Die sozioökonomischen und politischen Merkmale der Länder des östlichen und südlichen Afrikas (ESA) erfordern einen anderen Ansatz in der Wettbewerbspolitik. Die Wettbewerbspolitik im ESA-Kontext lenkt den Blick auf drei große Themen: Entwicklung, kleine Marktwirtschaften und regionale...

Worldwide, the overwhelming majority of large horizontal mergers are cleared by antitrust authorities unconditionally. The presumption seems to be that efficiencies from these mergers are sizeable. We calculate the compensating efficiencies that would prevent a merger from harming consumers for...

I present the following proposal: information revealed during non-cartel investigations by competition law enforcement authorities, such as evaluation of M&As or investigation of monopolization (dominance) conduct, should be directly used to investigate and prosecute cartels. Currently, in...

In many situations governments have sector-specific tax and regulation policies at their disposal to influence the market outcome after a national or an international merger has taken place. In this paper we study the implications for merger policy when countries non-cooperatively deploy...