University of East Anglia (Norwich) NERA (London)

Sean Ennis

University of East Anglia (Norwich), NERA (London)
Professor of Competition Policy

Currently Director of the Centre for Competition Policy and Professor of Competition Policy at Norwich Business School, Sean Ennis focuses on economic analysis for competition law and policy, building on extensive experience in government bodies. Previously, he was a Senior Economist in the Competition Division of the OECD. For two years, he was Executive Director of the Competition Commission of Mauritius, where he was the chief executive in charge of running Mauritius’ independent competition authority. At the OECD he developed and led the development and application of the OECD’s Competition Assessment Toolkit, a general method for reviewing regulations from a competition perspective. Prior to that, he worked as an economist at the European Commission’s DG Competition and at the U.S. Department of Justice’s Antitrust Division, developing economic analyses for competition law investigations. Sean has published research studies and reports and provided capacity building related to a broad range of business activities (including digitalisation, communications, health care, financial and professional services). These studies or statements have been submitted to or published by economics journals and organisations such as the G20, the European Parliament, the OECD and the World Bank. He has written, co-authored or overseen reports for regulatory and government agencies in Australia, Greece, Mexico, Peru, Romania, the United Kingdom and the United States. Sean has been involved in competition law and regulatory proceedings including with the European Commission, the U.S. Department of Justice and the U.S. Federal Communications Commission. Sean Ennis received a BA (Hons) in Economics from King’s College, Cambridge and a PhD in Economics from the University of California at Berkeley.

Auteurs associés

NERA (Paris)
NERA (New York)
NERA (London)
NERA (New York)
University of East Anglia (Norwich)


5291 Bulletin

Sean Ennis Price Abuses : An overview of EU and national case law


Allegations of pricing abuses have tested the boundaries of competition law for more than a century and remain an important activity for many competition authorities and courts. While pricing abuses constituted key parts of some early antitrust case, many commentators have urged that they are best addressed outside competition law. Since the 1970s such matters have been addressed at the European Union level by competition law. Pricing abuses can be viewed as a hybrid between regulation and competition law enforcement, sometimes raising a question of principle over when pricing that takes advantage of market power should be prevented by competition law action, by regulation or simply left unchallenged.


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