Management Team

David Evans


Dr. Evans has served as a testifying expert on numerous antitrust matters in the United States, and other jurisdictions, including several landmark cases. His academic work focuses on platform businesses, the digital economy, and antitrust.  He has authored six major books, including the award-winning Matchmakers: The New Economics of Multisided Business, and more than 100 articles and handbook chapters in these areas. The U.S. Supreme Court cited his work on multisided platforms and payment systems extensively in State of Ohio v. American Express. He has taught courses on antitrust economics at the University College London, the University of Chicago Law School, and Fordham Law School.

Roger Hickey


Prior to founding Global Economics Group, Mr. Hickey was Founder of Chicago Partners and served as President for over 12 years. He subsequently founded Winnemac Consulting, which is now part of the Global Economics Group. He has actively managed large litigation projects. His consulting experience includes valuation, intellectual property damages and licensing, corporate governance, strategic consulting for start-up companies, and international trade economics. He serves and has served on a number of early-stage company boards.

Chad Coffman


Prior to founding Global Economics Group, Mr. Coffman founded Winnemac Consulting where he served as President for 3 years. Chad has over 15 years of experience at directing and managing large and complex litigation consulting matters across a wide variety of disciplines. Prior to founding Winnemac, Chad was a Principal at Chicago Partners, LLC. Chad has a significant national practice in securities and valuation. He also often serves as a neutral expert engaged by prominent mediators in securities, valuation, and antitrust matters.

Our Approach

We work with our clients to define the appropriate questions, identify the proper approach, and provide rigorous answers in clear language.

Our experts, along with our highly trained and multi-disciplinary staff, apply rigorous, thoughtful, and practical analysis to economic questions. The breadth and depth of our expertise at all levels allow us to serve our clients in a professional and cost-effective manner. Our team includes econometricians, survey design and sampling experts, tax, accounting and financial experts.