Mariana Tavares has focused her professional career on the fields of EU law, competition law and regulated economic sectors. She served as a law clerk (référendaire) at the Court of Justice of the European Union and was a United Nations International Consultant for competition matters. She held several senior positions at the Portuguese Competition Authority and has been closely involved with the development of European and international competition law and policy. Mariana Tavares served as chair of several Working Groups of the European Competition Network and the International Competition Network and she also participated actively in the work of the BRICS Competition Law and Policy Centre, OECD, UNCTAD and the EU-China Trade Project. She holds a PhD in Law from King's College London, under the supervision of Professor Christopher Townley.