Tommaso Valletti

Tommaso Valletti is a Professor of Economics and currently heads the Department of Economics & Public Policy at Imperial College London. He was the Chief Competition Economist of the European Commission between 2016 and 2019, when he led the economic analysis on many large mergers (e.g. Bayer/Monsanto, Microsoft/LinkedIn, Siemens/Alstom), state aid, and antitrust cases (e.g. Google Android, Qualcomm exclusivity, Mastercard and VISA). He has published in the fields of industrial economics, regulation, and competition economics.

How to Tame the Tech Giants: Reverse the Burden of Proof in Merger Reviews

Most tech acquisitions are approved without a hitch, despite growing evidence that they bring little benefit, because regulators are waging an uphill...

Why Big Tech Companies Should Engage With Academia, and Why They Don’t

“Academic engagement” of a Big Tech firm: that job should exist. But it has not happened, and it probably won’t happen, unless...

“An Offer We Can’t Refuse”: How We Gave Away Our Data and Made Big Tech What It Is Today

WhatsApp’s new terms of service should come as no surprise. For years, Big Tech has been offering its users these “take it...

“Doubt is Their Product”: The Difference Between Research and Academic Lobbying

Tommaso Valletti, the former Chief Competition Economist of the European Commission, reflects on the intersection of academic economics and policymaking and offers...

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Buchanan’s Samaritan’s Dilemma

The Samaritan’s dilemma is not only about the detrimental effects help can have on the beneficiaries. As James Buchanan explained in his...

How Will the FTC Evaluate Vertical Mergers?

The Federal Trade Commission’s recent withdrawal of its 2020 vertical merger guidelines is flatly incorrect as a matter of microeconomic theory and...

Announcing the Participants in the Fall 2021 Stigler Center Journalists in Residence Program

This month, the Stigler Center will welcome eight world-class journalists from the United Kingdom, Brazil, China, Romania, Ukraine, Slovenia, and the United...

The Roots of America’s Competition Revolution

Proponents of the current transformation in America’s competition policy managed to shape legislative reform proposals, push public antitrust agencies to boost enforcement, and successfully...

Looks Can Be Deceiving: Ronald Coase and the Chicago School

Ronald Coase is typically thought of as one of the Chicago School’s brightest lights. But Coase’s relationship with Chicago was always an...

A New Browser Extension Aims to Bring Transparency to Big Tech Funding

As Congress prepares to debate a series of new antitrust bills​, the​ Big Tech Funding browser extension encourages lawmakers to be mindful...

What Are They Hiding? What Firms Don’t Want Us to Know About Their Economic Development Incentives

State and local governments offer firms all kinds of incentives in hopes of spurring local economic development. New research finds that a...