From the beginning, the debate on the likely results of the proposed acquisition of T-Mobile USA by AT&T focused more on the claims of the parties that “immense” merger efficiencies would overwhelm any apparent losses of competition than on the presence or absence of those losses, and the...

Freight railway enterprises in both Europe and North America are in the process of significant restructuring, with EC policy changes dictating new ownership, organization, and cooperation arrangements in Europe and a series of major mergers having already led to highly concentrated regional...

Voting trust arrangements have a long history at both the Interstate Commerce Commission and the Surface Transportation Board as devices to protect the incentives of acquiring firms and maintain the independence of acquiring and target firms during the pendency of regulatory investigation of the...

This paper presents a non-technical introduction to three economic tools that have in recent years become widespread in competition law enforcement in general and in the analysis of proposed mergers in particular: critical loss analysis, upward pricing pressure, and the vertical arithmetic. In...