The question of market definition for monopolization cases - and thus the issue of the possession of market power by the defendant - is crucial for the outcome of these cases. However, unlike antitrust merger analysis, where the DOJ-FTC Horizontal Merger Guidelines has provided a successful...

The U.S. financial crisis of 2007-2008 has been a searing experience. The popping of a housing bubble exposed the subprime lending debacle, which in turn created a wider financial crisis. In its response to this crisis, the federal government has provided financial assistance to a number of...

The DOJ and FTC monopolization cases against Google and Facebook, respectively, represent the most important federal non-merger antitrust initiatives since (at least) the 1990s. As in any monopolization case, market delineation will be a central feature of both cases – as it was in the du Pont...

Antitrust and regulatory concerns continue to swirl around the payment cards industry, for understandable reasons: The industry is clearly not atomistic in structure; it has substantial network characteristics and thus embodies network externalities; it involves two-sided markets; and its two...