This paper covers the activities of the Economic Analysis Group (EAG) of the Antitrust Division, U.S. Department of Justice, during 2005–2006. It describes the economic analysis undertaken by EAG in several important investigations, appellate matters, and other activities as an advocate for...

We discuss competition among payment card networks, and in particular how antitrust practitioners might approach questions of market definition and market power in these markets. Application of the hypothetical monopolist test to define markets, and the use of traditional metrics to measure...

We consider merger remedies of the U.S. Department of Justice's Antitrust Division and the U.S. Federal Trade Commission between 2008 and 2017. Traditionally one distinguishes between structural and behavioral remedies' and structural remedies are generally considered to be more effective and...