Ph.D. Indiana University, 1991; Cambridge University Mongolia and Inner Asian Studies Unit, Research Fellow, 1989-92; Indiana University, Rockefeller Fellow in Inner Asian Studies, 1992-93; Harvard University, Assistant and Associate Professor of Chinese and Inner Asian History, 1993-99; University of Canterbury (New Zealand), Senior Lecturer in Chinese History, 1999-2003; Institute for Advanced Study, Visiting Member, 1999, Luce Foundation Professor in East Asian Studies from 2003.