The Economics Group, LLC
Meet The Economics Group


Walter K. Lierman, Ph.D., earned a doctorate in Economics from the University of Arizona. Dr. Lierman's career in forensic economics, litigation support, economic analysis and consulting spans more than 15 years. In that time, he has produced hundreds of economic damage reports, has evaluated opposing experts' reports, and has provided expert testimony in both Federal and state courts. Dr. Lierman also co-authored the book Economics and Safety for the Trucking Industry with noted commercial trucking accident expert, Don Asa.

Dr. Lierman also serves as an adjunct professor in the Business department at Marylhurst University teaching environmental and resource economics in the MBA program in Sustainability. In addition, Dr. Lierman also develops econometric models, with applications in business analysis and forecasting and statistical analysis using SAS software. In earlier research, he developed large mathematical programming models with applications in solar energy and groundwater conservation.


A. E. Rodriguez, Ph.D., earned a doctorate in Economics from the University of Texas. Dr. Rodriguez’s experience in litigation support spans more than 18 years. His work is extensive, ranging from determining business and commercial damages, statistical analysis of discrimination, antitrust liability and damages, franchises, non-competes, among others.

He is a professor in the department of Economics and Finance at the University of New Haven. Besides advising graduate students in the MBA program, Dr. Rodriguez pursues an ambitious research agenda with much of his work dealing with questions involving empirical economic analysis.

Dr. Rodriguez has several years of Big-5 consulting experience with KPMG and PricewaterhouseCoopers, bringing substantial experience in the fields of econometric and statistical analysis, detailed commercial business valuations, antitrust, and statistical analysis of discrimination. Dr. Rodriguez is a former Federal Trade Commission staff Economist. Dr. Rodriguez serves as an economic consultant to several foreign governments and multinational agencies, most recently in Ethiopia, Mozambique, Nicaragua, and the Dominican Republic on issues of competition, trade and economic growth; multilateral agencies include the World Bank, the Asian Development Bank and the U.S. Agency for International Development.

18866 Old River Drive
West Linn, OR 97068
  Phone: 503.957.9554


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