His primary area of expertise is antitrust economics, on which he has published extensively. See https://faculty.haas.berkeley.edu/shapiro/.
Shapiro has consistently fought to protect and promote competition throughout the American economy, in service of the goal of inclusive and sustainable economic growth. He has served twice as the Deputy Assistant Attorney General for Economics in the Antitrust Division of the U.S. Department of Justice and has often testified as an expert witness for the government in antitrust cases. Shapiro also had the honor of serving as a Senate-confirmed Member of the President’s Council of Economic Advisers under President Barack Obama, where his portfolio included energy and environmental issues. In that role, he worked on policies to address climate change, to control pollution, and to protect public lands. That work never ends.