Senior Staff

The Perryman Group team includes approximately 20 full-time professionals. The credentials and experience of the team include

  • advanced degrees in economics, business, mathematics, and other related subject areas;
  • decades of work in economic and financial analysis; and
  • experience in other business settings including management positions with Fortune 500 companies.

TPG has strong relationships with a number of other individuals and can bring in highly qualified people in fields ranging from economics to sociology to assist with various aspects of project work if needed.

Richard Cox

Managing Director of Litigation and Dispute Analysis

Mr. Cox is the Managing Director of Litigation and Dispute Analysis and business valuation for The Perryman Group. He has 25 years of consulting experience involving economic damages and other economic and valuation issues. Mr. Cox has provided analysis on a broad range of commercial damage matters including intellectual property, patent infringement, antitrust, breach of contract, misappropriation of trade secrets, and other commercial litigation. As an Accredited Senior Appraiser (ASA) of the American Society of Appraisers in business valuation, Mr. Cox values businesses, business segments, intellectual property, and other business assets. He is also a Registered Professional Engineer (Inactive) with significant background and experience in the construction industry.

Representative List of Professional Experience

  • Managed patent infringement analyses for technologies related to (among others) the computer, e-commerce, medical devices, sports equipment, pharmaceuticals, oilfield equipment, and wireless communications industries.
  • Performed damage analyses and economic assessments for litigation projects in numerous industries such as energy, transportation, manufacturing, real estate, health care, communications, and financial services.
  • Analyzed investments in limited partnerships, stocks, bonds, and other related securities and business ventures.
  • Performed valuations of closely held companies and assets for stock buyouts, estate taxes, acquisitions, and financial accounting purposes.
  • Directed research in complex antitrust and securities matters.


  • MBA, Baylor University (Beta Gamma Sigma)
  • BS, Architectural Engineering, University of Texas at Austin
  • PE, Registered Professional Engineer, State of Texas (Inactive)
  • Accredited Senior Appraiser, American Society of Appraisers

Virginia Johnston

Managing Director of Public Policy, Economic Development, and Impact Analysis

Ms. Johnston is the Managing Director of Public Policy, Economic Development, and Impact Analysis for The Perryman Group. Ms. Johnston oversees projects including socioeconomic impact analyses and economic assessments of various kinds; she has also managed significant litigation matters for The Perryman Group and plays a key role in forecasts and publications. Through 25 years with the firm, Ms. Johnston has developed a depth and breadth of knowledge and experience which can be brought to bear in the most complex matters. She has conducted and directed research on topics ranging from the impact of legislative initiatives to the likely effects of major real estate developments to the convergence of technology industries. She has published peer-reviewed academic research in conjunction with Dr. Perryman. A key facet of Ms. Johnston’s role involves distilling voluminous research and data into easily understood reports suitable for a wide variety of audiences.

Representative List of Professional Experience

  • Managed hundreds of impact assessment analyses including, among others, studies of major corporate locations and expansions, institutions of higher education, major real estate developments, public policy changes, and infrastructure investments.
  • Conducted assessments of aspects of numerous industries including electric utilities, natural gas, alternative energy, emerging technologies, and others.
  • Researched topics and prepared reports related to major pension funds in Texas, immigration policy, economic development, and other related areas.
  • Managed market analyses and damage assessments for litigation projects including antitrust and patent matters in various industries.


  • MBA, Economics, Baylor University (Beta Gamma Sigma)
  • BA, Economics, University of Texas at Austin

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