Invited Professor at Católica University Law School. Graduated in Law by the University of Lisbon Law School (1995). PhD in Law from Nova University Law School (2005) with a thesis on the constitutional issues related to the Budget Law “A Lei por detrás do Orçamento – A questão constitucional da Lei do Orçamento”. At Nova University Law School Tiago Duarte was Professor of Portuguese Constitutional Law, Administrative Law and International Investment Arbitration. His main research and publication fields are Constitutional Law, Administrative Law and International Investment Arbitration. Tiago Duarte is a former Visiting Fellow of the University of Cambridge (Lauterpacht Research Centre for International Law and Wolfson College). He is Partner of PLMJ Law Firm where he Co-heads the Constitutional and Administrative Law Department of the firm. Experienced as counsel, arbitrator and legal expert in domestic and international arbitrations (ICC, ICSID, OHADA, UNCITRAL). Member of the National Ethics Council for the Lifes Sciences and chairman of the Investment Arbitration council of the Portuguese Arbitration Association.