The 2010 Department of Justice and Federal Trade Commission Horizontal Merger Guidelines lay out a new standard for assessing proposed mergers in markets with differentiated products. This new standard is based on a measure of ``upward pricing pressure,'' (UPP) and the calculation of a ``gross...

This paper examines the welfare effects of intellectual property protection, accounting for firms' optimal responses to legal environments. I examine firms' use of indirect price discrimination in response to U.S. copyright law preventing direct price discrimination. Using data covering VHS and...