Gautam Gowrisankaran

Professor of Economics,
Columbia University;
Senior Advisor, Cornerstone Research

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Gautam Gowrisankaran is an expert in industrial organization, healthcare economics, and energy and environmental economics. Professor Gowrisankaran has analyzed issues of market definition and market power, the competitive effects of mergers, and claims of attempted monopolization. He has also addressed allegations of tying, foreclosure, and other exclusionary practices arising in such industries as healthcare, consumer goods, high-tech products, payment services, and transportation.

An experienced expert witness, Professor Gowrisankaran has been retained by federal and state agencies as well as by private clients in numerous high-profile mergers, antitrust litigation matters, and consumer class actions. His trial testimony includes United States of America et al v. JetBlue Airways Corporation and Spirit Airlines Inc.; United States et al. v. UnitedHealth Group Inc. and Change Healthcare Inc.; Sidibe v. Sutter Health; In re: Purdue Pharma L.P. et al.; and Federal Trade Commission v. Hackensack Meridian Health Inc. and Englewood Healthcare Foundation. He has consulted to the Federal Trade Commission and the Antitrust Division of the Department of Justice on matters involving airlines and mergers in the healthcare space.

In his research, Professor Gowrisankaran conducts both theoretical and empirical studies of topics related to industrial organization and competition. He has particular expertise in industries that are highly regulated and exhibit rapid technological change, such as healthcare and energy, as well as markets in which prices are negotiated.

One focus of his recent research is energy, including renewable energy generation and environmental regulation. Professor Gowrisankaran has also analyzed a variety of issues in healthcare markets, such as hospital competition, the impact of countervailing market power, hospital quality, and the price impact of hospital mergers. He has also analyzed competition issues in markets involving health insurance and accountable care organizations (ACOs).

A prolific author, Professor Gowrisankaran has published research in leading economics journals, including the American Economic Review, Econometrica, and the Journal of Political Economy. He has served on the editorial boards of several academic journals, including the American Economic Review and the RAND Journal of Economics. In addition, Professor Gowrisankaran has written analyses for a legal audience, including in the Antitrust Law Journal. He has been honored with best paper awards and recognized by Who’s Who Legal as a leading competition economist.

Global Competition Review recognized Professor Gowrisankaran to its inaugural list of the world’s most important antitrust academics. He was also honored in Lexology’s 2022 Client Choice list.

Prior to joining the faculty at Columbia, Professor Gowrisankaran was a tenured professor of economics and the Peter and Nancy Salter Chair in Healthcare Management at the University of Arizona. He has held visiting academic appointments at Northwestern University, the University of Chicago, Yale University, and Harvard University, among others.

Professor Gowrisankaran serves on the U.S. Congressional Budget Office Health Advisory Panel. He is a research associate at the National Bureau of Economic Research (NBER) and a research fellow at the Center for Economic and Policy Research (CEPR).


United States of America et al v. JetBlue Airways Corporation and Spirit Airlines Inc.

Press Release

WWL: Competition Global Leaders and Consulting Experts 2023


United States et al. v. UnitedHealth Group Incorporated et al.

Press Release

Cornerstone Research Shortlisted for 2023 GCR Awards

Press Release

Gautam Gowrisankaran Receives 2022 Lexology Client Choice Recognition

Press Release

Cornerstone Research Affiliated Experts Named to Global Competition Review’s Inaugural List of Leading Antitrust Academics


Antitrust Expert Spotlight: Gautam Gowrisankaran

Press Release

WWL: Global Leader Competition—Economists 2022

  • “Pharmacy Benefit Managers: Economics and Enforcement Interest,” 49th Annual Conference on International Antitrust Law and Policy and Antitrust Economics Workshops, Fordham University School of Law, 14 September 2022
  • “Empirical Industrial Organization: Analysis of Contracting and Bargaining,” Birkbeck College of the University of London and the University of Oxford, 15 June 2018