DeForest McDuff

Partner at Insight Economics

DeForest McDuff, PhD is a Princeton-trained economist, adjunct professor of economics, and experienced expert witness, with extensive experience in consulting, finance, and business. Dr McDuff’s expert opinions have been cited and relied upon by clients, courts, and government agencies. Dr McDuff was named in the IAM Patent 1000 as a top expert witness for patent cases in 2020. Dr McDuff co-founded Insight Economics in 2017.

Dr McDuff provides economic consulting and testimony in many areas, including:

  • Economic damages: lost profits, unjust enrichment, reasonable royalty, loss of value, loss of reputation, business impact, and other issues
  • Intellectual property: patents, trademarks, trade secrets, copyrights, licensing
  • Antitrust: monopolization, price discrimination, tying, price fixing, mergers
  • Competition: economic harm, market definition, unfair competition, false advertising
  • Legal issues: class action, class certification, irreparable harm, commercial success
  • Other areas: valuation, financial analysis, labor, employment, lost wages, and more

Dr McDuff’s expert witness experience includes more than 90 expert reports, 60 expert depositions, and 20 trials and hearings in courts across the country. His consulting experience outside the courtroom includes regulatory analysis, fair market value, licensing, negotiation, pricing, business strategy, product launches, strategic analysis, and a range of other topics.

Dr McDuff earned a PhD in Economics from Princeton University, where he received a National Science Foundation Graduate Research Fellowship (awarded to 25 graduate students in economics nationwide each year) for his academic research in financial economics and applied microeconomics. He has published in peer-reviewed academic journals and widely reviewed industry publications. Dr McDuff graduated summa cum laude with a BA in economics and a BS mathematics from the University of Maryland.

Dr McDuff is currently appointed as an Adjunct Teaching Professor in the Department of Economics at the University of North Carolina at Chapel Hill. Dr McDuff is also the co-founder of Integrity Seminars, an online company dedicated to teaching academic integrity to college students since 2006. The company offers the Academic Integrity Seminar, which is a personalised online educational intervention administered to >100 colleges and universities nationwide to promote the importance of social trust and mutual obligation in personal, academic, and economic relationships.

Dr McDuff’s biography can be found at

Professional associations

  • American Economics Association
  • LES

Firm details

Insight Economics
555 Fayetteville Street
Suite 201
Raleigh NC 27601
United States

Contact details