Mark MacCarthy is adjunct professor at Georgetown University in the Graduate School’s Communication, Culture, & Technology Program and in the Philosophy Department. He teaches courses in technology policy including on content moderation for social media, and the ethics of speech. He is also a Nonresident Senior Fellow in the Institute for Technology Law and Policy at Georgetown Law and a nonresident Senior Fellow in Governance Studies at the Center for Technology Innovation at the Brookings Institution.

He engages in research and commentary on technology policy including competition policy for tech, privacy, social media regulation, and AI ethics and policy. His regular commentaries on technology policy appear in Brookings TechTank, Lawfare, the Center for International Governance Innovation, and the Hill. His book, Regulating Digital Industries: How Public Oversight Can Encourage Competition, Protect Privacy, and Ensure Free Speech, is forthcoming from Brookings Institution Press in October 2023.

He has extensive public policy experience in Washington D.C. He served as a professional staff member of the U.S. House of Representatives’ Committee on Energy and Commerce, where he handled telecommunications, broadcasting, and cable issues, and as a regulatory analyst at the U.S. Occupational Safety and Health Administration. He was in charge of the Washington office for Capital Cities/ABC, served as senior vice president for Visa, Inc. and ran the public policy division of the Software & Information Industry Association.

MacCarthy holds a B.A. from Fordham University, an M.A. in economics from Notre Dame and a Ph.D. in philosophy from Indiana University.