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I do most of my consulting work as a Senior Consultant for Compass Lexecon.  I am a former Deputy Director of the Federal Trade Commission’s Bureau of Economics, and Chief of the Economic Regulatory Section at the Department of Justice’s Antitrust Division. I have led antitrust investigations across a wide range of industries, including industrial supplies and equipment, mobile telephone and internet services, car rental services, retail products manufacturing and distribution, software, futures exchanges, banking, wholesale distribution, aerospace, pharmaceuticals, broadcast television, cable and satellite television programming and distribution, academic journals, aluminum manufacturing, and telecommunications, among others. 

I have served as an economic expert on several antitrust, consumer protection and litigation matters, including:


  • Several transactions and conduct investigations from 2018 to present in healthcare (expert advice to payors and providers)

  • Several transactions from 2018 to present involving semiconductors (expert advice to Fortune 500 chip designers and chip makers)

  • CoStar-RentPath merger (expert report on behalf of the FTC);

  • Report to the FTC the Economics of Privacy (on behalf of 

  • Dupont-Dow merger (expert report on behalf of Dupont regarding common ownership issues, submitted to the European Commission);

  • Hertz-Dollar Thrifty merger (expert report on behalf of the FTC);

  • Nestle-Dreyers merger (expert report on behalf of the FTC);

  • International arbitration involving joint venture dispute in a heavy equipment industry (expert report on behalf of a Fortune 500 client);

  • Class action lawsuit involving automobile suppliers (expert report and testimony on behalf of a private client);

  • Vertical merger in healthcare (expert report on behalf of Fortune 500 client);

  • Acquisition in the internet domain services industry (expert white paper on behalf of private client submitted and presented to the DOJ).

I have taught economics at Northwestern University, the University of Michigan, Georgetown Law School, the University of Verona, Italy, the Kelley School of Business, Indiana University, and UC Berkeley, and I continue to engage in research and present at conferences and universities around the world.  My research has been published in leading economic and law journals, including the American Economic Review, Journal of Economic Theory, Rand Journal of Economics, American Economic Journal: Microeconomics, Antitrust Law Journal, International Journal of Industrial Organization, Journal of Industrial Economics, Journal of Economics & Management Strategy, Journal of Law, Economics & Organization, among others.  Some of my articles (e.g., on vertical restraints, common ownership, and critical loss) appear to have had significant influence on competition policy and the field of industrial organization.  I have been an invited participant in hearings before the FTC on vertical merger guidelines and common ownership and before the OECD on common ownership.

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