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Photo of Sean F Ennis

Professor of Competition Policy

Professor Sean F. Ennis is an economist, author and expert. He focuses on company behavior, competition and regulation.  


He has developed economic market analysis for governments, academia and the private sector. After receiving a BA Hons from King’s College, Cambridge and a PhD from the University of California at Berkeley, he spent more than two decades working on economic and regulatory topics at the OECD, the European Commission and the US Department of Justice. He is now a Professor at the University of East Anglia in England. He has advised and given seminars in more than 25 countries.

Sean has written technical articles published in academic journals, reports released by government institutions, and, most recently, the book Internet Empire: The Hidden Digital War, a lively examination of how the internet expansion of US companies has achieved consequences like those of traditional war.


Sean engages with energy and passion in special speaking events and seminars. He has chaired and spoken to prestigious international meetings, and has provided his expert views to the European Parliament's Economic Committee and the United Nations. His speaking combines enthusiasm, spontaneity and originality.

Sean has lived in Washington D.C, Paris, Mauritius and London. His interests include European history, minimalist travel and good food. He is married and has four children.


& CV

With over 20 years of wide-ranging international experience related to competition law and regulation, Dr. Ennis is an economic expert specializing in the economics of competition law and regulatory policy. He has developed economic analyses spanning a range of sectors, including regulated industries, digitalization, financial and professional services, communications, media, and health care. At the OECD, he led the development and application of the Competition Assessment Toolkit, an international reference for identifying and revising regulations that impact competition. At the European Commission's DG Competition and US Department of Justice's Antitrust Division, he developed economic analyses for antitrust investigations.


His studies and statements have been published by economic journals and provided to organizations such as the G20, OECD, United Nations Conference for Trade and Development and World Bank.


Dr. Ennis is a Professor of Competition Policy and Director of the Centre for Competition Policy at the University of East Anglia. He served before that as a senior economist at the OECD. He has also previously served as an Executive Director of the Competition Commission of Mauritius, leading an independent competition authority. Dr. Ennis has provided expert views for court and regulatory actions, as well as to the European Parliament and UK Parliament. 

Interests & CV

Research & writings

Sean Ennis is an economist who specialises in competition economics, digitalisation and its impacts on markets, regulated industries, cartels and inequality. He has written about topics that include digitalisation, health care, telecommunications, media, water, networks, delivery, innovation, pricing and regulatory governance.

Reseach & writings
Sean Ennis speaking at a conference


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