Gautam Gowrisankaran

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

For more information, contact:

  • Dina Older Aguilar
  • David M. Russo
  • Avigail Kifer
  • Sarah Abraham

or any member of our senior staff.


Gautam Gowrisankaran is an expert in industrial organization, healthcare economics, and energy and environmental economics. He has provided economic testimony in mergers, antitrust litigation, and other consumer class actions. Professor Gowrisankaran is experienced at analyzing market definition and market power, addressing the competitive effects of mergers, and analyzing claims of attempted monopolization as well as tying, foreclosure, and other exclusionary practices. Professor Gowrisankaran has particular expertise analyzing industries that are highly regulated and exhibit rapid technological change, such as healthcare and energy, as well as markets in which prices are negotiated. His industry experience also includes consumer goods, high-tech products, payment services, and transportation.

Professor Gowrisankaran has been retained as an expert for federal and state agencies, as well as private clients in high-profile mergers, antitrust litigation matters, and other consumer class actions. He has testified at court actions involving the Federal Trade Commission (FTC) and before U.S. district courts, state courts, and internationally, including testimony at court in hospital merger and bankruptcy matters. He has consulted to the Antitrust Division of the Department of Justice on matters involving airline and hospital mergers.

Professor Gowrisankaran conducts both theoretical and empirical research on topics related to industrial organization and competition. 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 ReviewEconometrica, and the Journal of Political Economy. He has also 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. He serves as associate editor of several academic journals, including the International Economic Review and the RAND Journal of Economics.

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).

Press Release

WWL: Global Leader Competition—Economists 2022


Sidibe et al. v. Sutter Health

Press Release

Who’s Who Legal: Competition 2021—Economists


Vertical Merger Guidelines Overlook Health Care Co. Issues

Press Release

2020 Who’s Who Legal: Competition–Economists

Press Release

Cornerstone Research Staff Review New U.S. Vertical Merger Guidelines


Healthcare Merger Analysis

Press Release

2019 Who’s Who Legal: Consulting Experts

  • “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