We present a model of a market failure based on a requirement provision by digital platforms in the acquisition of personal information from users of other products/services. We establish the economic harm from the market failure and the requirement using traditional antitrust methodology....

Following up on our initial comments at the Tunney Act proceeding of the proposed merger between Sprint and T-Mobile, we discuss DOJ's criticisms of these comments, explaining why these criticisms are baseless. Moreover, using evidence from the NY v. Deutsche Telecom trial, we provide new...

This paper analyzes the law and economics of United States v. Microsoft, a landmark case of antitrust intervention in network industries. The United States Department of Justice and 19 States sued Microsoft alleging (i) that it monopolized the market for operating systems of personal computers...