Andreas R. Ziegler studied international economics, international relations and law at the University of St. Gallen (Switzerland), the Institut d'Etudes Politiques de Paris (France), the European University Institute (Florence, Italy) and the University of London (SOAS, UK). After undertaking post-doctoral research at Georgetown University (Washington DC, USA) and the Max-Planck-Institute in Heidelberg (Germany) he taught European Union Law, international trade law and environmental law at the Chicago Kent College of Law in Chicago (USA), the University of Pittsburgh (USA) and the University of St. Gallen. For several years he worked in practice for the Swiss Government (Ministry of Foreign Affairs, State Secretariat for Economic Affairs), the European Commission (DG Internal Market), in the Secretariat of the European Free Trade Association (EFTA) and in a law firm in Zurich on trade and investment issues. In this function he negotiated many multilateral and bilateral agreements and was also a delegate to the WTO, UNCTAD, the OECD, the Energy Charter and other international organizations. He is currently a professor of international law at the University of Lausanne (Switzerland) and a Counsel with the law firm of Froriep Rengli. He is on the WTO’s roster of official panelists as well as on the list of conciliators of the International Centre for the Settlement of Investment Disputes (ICSID). He is the Academic Director of the LLM Program in International and European Economic and Commercial Law at the University of Lausanne and a Deputy Director of the NCCR Trade based at the World Trade Institute of the University of Berne (Switzerland). He is a visiting professor at the University of New South Wales (Sydney, Australia) since 1997, at the Swiss Federal Institute for Technology (ETH, Zurich) since 2004 and at the Europe Institute of the University of the Saarland (Saarbrucken, Germany) since 2008. He held similar positions at the Università commerciale Luigi Bocconi in Milan (Italy 2005-7), the University of Vilnius (Lithuania, 2007), the University of Munich (Germany, 2007) and the University of Lund (Sweden, 2008).