Until 2008 he was an Associate Professor at the University of Idaho College of Law. He is a regular Visiting Fellow at the Max Planck Institute for Comparative Public Law and Public International Law in Heidelberg, Germany. He has published a number of books and articles on international and comparative law with, among others, Cambridge University Press, Routledge, the Washington & Lee Law Review, the Columbia Journal of Transnational Law, and the American Journal of International Law. He is co-founder and Co-Editor-in-Chief of the German Law Journal (http://www.germanlawjournal.com). With Rebecca Bratspies, he was the co-founder and co-convener of the Idaho International Law Symposium.