He has been a visiting professor at the University of Augsburg in Germany (2011), the Swedish National Defence College (recurring) and the European Academy (recurring), the Bicentennial Visiting Associate Professor in Canadian Studies at Yale University (2009–2010), and is a research fellow at the Austrian Institute for European and Security Policy (since 2010), the Solomon Asch Center for Study of Ethnopolitical Conflict at the University of Pennsylvania and Bryn Mawr College (2003), the World Population Program at the International Institute for Advanced Systems Analysis in Vienna, Austria (2002), and held doctoral (2001–2003) and postdoctoral (2003–2005) fellowships from the Social Sciences and Humanities Research Council of Canada.