James Langenfeld, Ph.D., Managing Director and Principal

Dr. James Langenfeld is a Managing Director and Principal at Navigant Economics and an Adjunct Professor at Loyola University School of Law. As a consultant, he provides economic analyses in the context of litigation, regulation, and economic policy that relate to competition and antitrust, intellectual property, class certification, damages, and the impact of government actions. In over 25 years as a professional economist, Dr. Langenfeld has done extensive work in many industries, including healthcare, pharmaceuticals and medical devices, insurance, petroleum, chemicals, motor vehicles, defense and aerospace, tobacco, and a wide variety of other consumer and industrial products.

Dr. Langenfeld regularly testifies for private parties and government agencies engaged in litigation and regulatory proceedings at the federal and state levels in the US, and in Europe, Canada, and other countries. These testimonies have covered a variety of topics. They include analysis of alleged anticompetitive acts, such as monopolistic practices, price fixing, and price discrimination, as well as analyses of hundreds of mergers. Dr. Langenfeld has also testified many times on damages, class certification, and the impact of regulation on firms and consumers.

Dr. Langenfeld's professional experience includes ten years with the Federal Trade Commission, the last six of which he served as Director for Antitrust in the Bureau of Economics. In that role, he managed 45 PhD economists and was one of main contributors to the 1992 Department of Justice and Federal Trade Commission Horizontal Merger Guidelines and the 1993 Statements of Antitrust Enforcement Policy in Health Care. He also served as a Senior Economist at General Motors.

Dr. Langenfeld has published numerous articles in journals and books on many topics in applied economics and econometrics, including analyses of antitrust issues, mergers, intellectual property, the interface of antitrust and intellectual property, and damages. For example, he is one of the main authors of the American Bar Association's 2010 book Proving Antitrust Damages. He has been awarded many honors, is a on the editorial board and referees for several professional journals, and serves on the advisory board of several organizations. He holds a Ph.D. in Economics from Washington University and an A.B. in Economics from Georgetown University.

Contact: 847.424.4108 | james.langenfeld@naviganteconomics.com
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Recent Publication

James Langenfeld, Views on the Proposed Horizontal Merger Guidelines (Submitted June 4, 2010 in response to FTC File No. P092900; Federal Trade Commission Seeks Views on Proposed Update of the Horizontal Merger Guidelines; Revisions Undertaken Jointly by the FTC and the Department of Justice After a Series of Public Workshops – Public Comments).