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...

We analyze and contrast the US and EU antitrust standards on mixed bundling and tying. We apply our analysis to the US and EU cases against Microsoft on the issue of tying new products (Internet Explorer in the US, and Windows Media Player in the EU) with Windows as well as to cases brought in...