Personal profile


Currently Director of the Centre for Competition Policy and Professor of Competition Policy at Norwich Business School, Sean Ennis has extensive experience in government work and competition law and policy. 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. 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 co-authored or overseen reports for regulatory and government agencies in Australia, Greece, Mexico, Romania, the United Kingdom and the United States.

He 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.

Key Research Interests

Sean Ennis is an economist who specialises in competition economics, digitalisation and regulation. His research interests include competition economics including cartels, digitalisation and its impacts on markets, regulated industries and inequality.

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 10 - Reduced Inequalities

Education/Academic qualification

Doctor of Philosophy, University of California, Berkeley

Award Date: 31 Jul 1996

Bachelor of Arts, University of Cambridge

Award Date: 31 Jul 1990

External positions

Board Member, Centre on Regulation in Europe

1 Jun 2022 → …

Senior Economist, Organisation for Economic Co-Operation and Development

Apr 2013Dec 2018

Executive Director, Competition Commission of Mauritius

Mar 2011Mar 2013

Senior Economist, Organisation for Economic Co-Operation and Development

Apr 2003Mar 2011

Economist, Directorate-General for Competition

Sep 2002Mar 2003

Economist, U.S. Department of Justice

Jul 1996Sep 2002

Collaborations and top research areas from the last five years

Recent external collaboration on country/territory level. Dive into details by clicking on the dots or