Law Commons^™

Antitrust Interoperability Remedies, Herbert J. Hovenkamp

All Faculty Scholarship

Compelled interoperability can be a useful remedy for dominant firms, including large digital platforms, who violate the antitrust laws. They can address competition concerns without interfering unnecessarily with the structures that make digital platforms attractive and that have contributed so much to economic growth.

Given the wide variety of structures and business models for big tech, “interoperability” must be defined broadly. It can realistically include everything from “dynamic” interoperability that requires real time sharing of data and operations, to “static” interoperability which requires portability but not necessarily real time interactions. Also included are the compelled sharing of intellectual property or …

Antitrust And Platform Monopoly, Herbert J. Hovenkamp

All Faculty Scholarship

Are large digital platforms that deal directly with consumers “winner take all,” or natural monopoly, firms? That question is surprisingly complex and does not produce the same answer for every platform. The closer one looks at digital platforms the less they seem to be winner-take-all. As a result, competition can be made to work in most of them. Further, antitrust enforcement, with its accommodation of firm variety, is generally superior to any form of statutory regulation that generalizes over large numbers.

Assuming that an antitrust violation is found, what should be the remedy? Breaking up large firms subject to extensive …

Competitive Harm From Vertical Mergers, Herbert J. Hovenkamp

All Faculty Scholarship

The antitrust enforcement Agencies' 2020 Vertical Merger Guidelines introduce a nontechnical application of bargaining theory into the assessment of competitive effects from vertical acquisitions. The economics of such bargaining is complex and can produce skepticism among judges, who might regard its mathematics as overly technical, its game theory as excessively theoretical or speculative, or its assumptions as unrealistic.

However, we have been there before. The introduction of concentration indexes, particularly the HHI, in the Merger Guidelines was initially met with skepticism but gradually they were accepted as judges became more comfortable with them. The same thing very largely happened again …

Quantification Of Harm In Private Antitrust Actions In The United States, Herbert J. Hovenkamp

All Faculty Scholarship

This paper discusses the theory and experience of United States courts concerning the quantification of harm in antitrust cases. This treatment pertains to both the social cost of antitrust violations, and to the private damage mechanisms that United States antitrust law has developed. It is submitted for the Roundtable on the Quantification of Harm to Competition by National Courts and Competition Agencies, Organization for Economic Cooperation and Development (OECD), Feb., 2011.

In a typical year more than 90% of antitrust complaints filed in the United States are by private plaintiffs rather than the federal government. Further, when the individual states …