Leslie M. Marx, PhD

Leslie M. Marx is the Robert A. Bandeen Professor of Economics at the Fuqua School of Business at Duke University. She is an expert in auctions, vertical contracting, antitrust liability, and cartels. Dr. Marx is well known for her innovative ideas in the areas of industrial organization, applied game theory, auctions, procurements, and collusion. She served as Chief Economist of the Federal Communications Commission from August 2005 through August 2006.

Dr. Marx has published extensively in peer-reviewed journals and elsewhere on topics related to industrial organization, applied game theory, auctions, procurements, and collusion. Her published work includes papers on collusive mechanisms, incentives in procurement contracting, slotting allowances, and exclusive dealing. In addition, Dr. Marx has been named on the Lexology Index (formerly Who’s Who Legal) list of leading competition economists since 2017.

Dr. Marx is an Economic Theory Fellow of the Society for the Advancement of Economic Theory and a Fellow of the Game Theory Society. She has served on multiple academic journal editorial boards, journal and center advisory boards, and conference scientific committees.

Outside of antitrust, Dr. Marx has also notched up numerous honors in the sport of fencing, including competing on the 1996 US Olympic team and winning three Pan-American gold medals and multiple national championships. She continues to participate in masters-level competitions and serves as a volunteer assistant coach for Duke’s varsity fencing team.

PhD, Economics, Northwestern University

BS, Mathematics, Duke University

• In the matter In re Capacitors Antitrust Litigation, submitted expert reports on behalf of several direct action plaintiffs, including Avnet, that include large electronic component distributors and contract manufacturers. A California federal jury returned a verdict for Avnet in the amount of $89.2 million.
• Retained by the Department of Justice to evaluate the competitive effects of Sinclair Broadcast Group's proposed acquisition of Tribune Media.
• In In re Optical Disk Drive Products Antitrust Litigation, testified on behalf of Dell Inc. and Dell Products, Inc.
• In the matter In re Determination of Rates and Terms for Making and Distributing Phonorecords, testified on behalf of Spotify USA Inc. regarding royalty payments under Section 115 of the Copyright Act. 
• Submitted an expert report in the matter In re Cathode Ray Tube (CRT) Antitrust Litigation on behalf of a class of direct purchasers. 
• Prepared as a testifying expert on behalf of DOJ in support of its successful challenge of the proposed $34.6 billion merger of Halliburton and Baker Hughes.

• Served as testifying expert at deposition and trial on behalf of a large coalition of direct action plaintiffs in the matter In re Urethane Antitrust Litigation. 

• In the matter ACCC v. Informed Sources, provided economic analysis on behalf of the Australian Competition and Consumer Commission in its Federal Court of Australia proceedings against Informed Sources. 

• In the matter In re Petition of Pandora Media, Inc., served as testifying expert on behalf of Pandora in its litigation with the American Society of Composers, Authors, and Publishers (ASCAP). 
• Served as a testifying damage expert on behalf of plaintiffs in the matter In re TFT-LCD (Flat Panel) Antitrust Litigation. 
• In the matter In re Chocolate Confectionary Antitrust Litigation, assisted testifying expert on behalf of defendant regarding its participation in an alleged price-fixing conspiracy of chocolate candy products in the United States. 
• Submitted a white paper to and participated in meetings with DOJ and the FCC on behalf of the Communications Workers of America (CWA), an interested party in the proposed T-Mobile/AT&T merger.