Dr. Roach has advised government and industry on a wide range of matters, including Regulatory Policy, Antitrust, Mergers, Business Strategy, and Labor & Employment matters, in the U.S. and internationally. He has consulted in several merger cases, written expert reports and served as an expert witness in cases concerning economic damages and contract disputes, and advised the Oklahoma Legislature on both renewable energy and alcohol policy. Additionally, Dr. Roach has served as a referee for more than 30 academic journals including some of the most well-regarded journals in the profession.