In this paper, we build a model of the news market where advertisers allocate their ads between a social media platform and a news website that is the content creator. Our main objective is to evaluate a policy intervention that aims to foster news creation by transferring revenues from social...

As economists with significant experience in competition, telecommunications, and regulatory matters, we have filed the attached brief in the case of State of New York v. Deutsche Telecom supporting the plaintiffs, who have sued to prevent the merger of T-Mobile and Sprint. We explain why the...

Dominant digital platforms such as Google and Facebook collect personal information of users by default precipitating a market failure in the market for personal information. We establish the economic harms from the market failure. We discuss conditions for eliminating the market failure and...

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...

As economists with significant experience in competition and regulatory matters, we offer comments on the remedies proposed by the Department of Justice to address the competitive effects flowing from the proposed merger of Sprint and T-Mobile, as recognized by the DOJ's Complaint. We find that...

This paper studies the efficient use of prioritization in Amazon's Twitch.tv, taking into account the trade-off between entry and congestion. I specify and estimate supply and demand models for live video, and a congestion model. Using technological shocks, I identify congestion costs for...

We compare four approaches to network neutrality and network management regulation in a two-sided market model: (i) no variations in Quality of Service and no price discrimination; (ii) variations in Quality of Service but no price discrimination; (iii) variations in Quality of Service and price...

In this paper we study the implications of service level guarantees (SLGs) in a model of oligopoly competition where providers compete to deliver a service to congestion-sensitive consumers. The SLG is a contractual obligation on the part of the service provider: regardless of how many customers...