Laurence Boisson de Chazournes is Professor of International Law and International Organization at the Faculty of Law of the University of Geneva. She has published widely in many fields of international law and acts as counsel and arbitrator before various international courts and tribunals. Marcelo Kohen is an associate member of the Institute of International Law and a professor of international law at the Graduate Institute of International and Development Studies in Geneva where has been a member of the faculty since 1995. He has also worked as a counsel and advocate for a number of States before the International Court of Justice and has been visiting professor at several European Universities. Jorge E. Viñuales, Ph.D. (Sciences Po Paris), LL.M. (Harvard) is the Pictet Chair in International Environmental Law and an Assistant Professor of Public International Law at The Graduate Institute, Geneva. He has substantial experience as a practitioner and has published widely, most recently Foreign Investment and the Environment in International Law (Cambridge University Press, 2012).