Listed as No 7 of the 15 most influential intellectuals of Switzerland in 2016 by Basler Zeitung.
Listed as No 7 of the 15 most influential intellectuals of Switzerland in 2015 by Basler Zeitung.
Dr. rer. pol. honoris causae of Leuphana University Lueneburg (2012)
Gold Star for Merit to the Land Vienna (2008)
Small States Prize of the Herbert-Batliner Europe Institute Salzburg (2004; other laureates: Lennart Meeri, President of Estonia, Jordi Pujol, President of the Province of Catalonia, Varia Vike-Freiberga, President of Latvia, Jean-Claude Juncker, Prime Minister of Luxembourg).
Cross of Honour for Science and Art First Class of the Republic of Austria (2003)
Carl H. Fulda Award for Excellence in International Law of the Texas International Law Journal (2003).
Walther Hug Award for one of the best doctoral law dissertations in Switzerland (1978)