1970 | Bachelor of Arts (B.A.), Dartmouth College, Hanover, New Hampshire |
1973 | M.A., Department of Political Science, Graduate School of Arts and Sciences, Columbia University, New York |
1974 | M.Phil., Department of Political Science, Graduate School of Arts and Sciences, Columbia University, New York |
1974-1998 | United Nations Association of the USA (UNA-USA) |
1998-2001 | Founder and Executive Director, Center for the Study of International Organization, New York University School of Law, New York, and Woodrow Wilson School of Public and International Affairs, Princeton University, Princeton |
1999-2000 | Visiting Lecturer, Woodrow Wilson School of Public and International Affairs, Princeton University, Princeton |
2001 | PhD, Department of Political Science, Graduate School of Arts and Sciences, Columbia University, New York |
2001-2010 | SIPA - School of International and Public Affairs, Columbia University, New York |
2003-2010 | Visiting Professor, Cycle Supéneuer de Relations Internationals, Sciences Po, Paris |
2007-2011 | IPI - International Peace Institute |
2008-2012 | United Nations Assistant Secretary-General; Special Adviser to Secretary-General Ban Ki-Moon |
2012-2013 | Dean, Joan B. Kroc School of Peace Studies, University of San Diego |
2012-2014 | Professor (tenured), Joan B. Kroc School of Peace Studies, University of San Diego |
since 2015 | Sharkey Scholar, School of Diplomacy and International Relations, Seton Hall University, South Orange, New Jersey |