Maria Maher is a principal in the London office of Cornerstone Research. She is a competition economist with more than twenty years of international experience. She consults on complex issues related to abuse of dominance, cartels, mergers, market investigations, contracts, and damages.

Dr. Maher previously served as a senior economist for the Organisation for Economic Co-operation and Development (OECD), leading research on competition, network industry regulation, international investment, sustainable development, and corporate governance. She spent her early career in faculty positions at Birkbeck College and the University of Cambridge, where she was also a fellow and director of studies in economics at Christ’s College.

With expertise in a wide range of industries, including financial services, telecommunications, energy, chemicals, and commodities, Dr. Maher provides consulting and litigation support and expert reports on a variety of topics in these fields.

Dr. Maher speaks at scholarly and specialist conferences and publishes widely on topics related to competition, regulatory policy and reform, and auctions and spectrum management. She has taught both undergraduate and graduate courses in industrial organization, microeconomic theory, competition and regulatory policy, bargaining, and game theory. As an academic, she also provided strategic advice to BT on R&D, compatibility standards, and licensing.

Dr. Maher can be reached at