University Professor at Uppsala University and Principal of the Swedish Collegium for Advanced Study (SCAS), Uppsala. Formerly Lars Hierta Professor of Government at Stockholm University. He is a member of the Royal Swedish Academy of Sciences and of Academia Europaea, and of the editorial board of its journal European Review. He has also been guest editor of the journal of the American Academy of Arts and Sciences, Daedalus. He has held visiting positions at a large number of universities and scholarly institutions, including Berkeley, Berlin, Budapest, CASBS (Stanford), NIAS (Wassenaar), NHC (Research Triangle Park), and Vienna.