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...