Hans van Amersfoort gained his PhD in geography and is professor at the Institute of Social Geography and senior researcher at the Institute for Migration and Ethnic Studies at the University of Amsterdam, Netherlands; recent books on immigration and the formation of minority groups, and on the nationality question in Europe; special interest in ethnic residential patterns.
Rainer Bauböck has a PhD in sociology and is assistant professor at the department of political science, Institute for Advanced Studies in Vienna, Austria. In 1998–99 he is a visiting member at the Institute for Advanced Studies, Princeton, USA; recent books: Transnational citizenship, membership and rights in international migration and Blurred Boundaries. Migration, Ethnicity and Citizenship (co-editor).
Grete Brochmann gained her PhD in sociology and is research director at the Institute for Social Research, Oslo, associate professor at the University of Oslo, Norway and author of a book on women's migration to the Middle East. She has regional interests in East Africa, Sri Lanka, the Gulf states and Mozambique, and has written recent books on migration policies and the European Community, and on Bosnian refugees in the Nordic countries.
Tomas Hammar has a PhD in political science, professor emeritus at the Centre for Research in International Migration and Ethnic relations (Ceifo), Stockholm University, Sweden. He was director of the Centre from 1982 until 1993. He is a specialist in the political analysis of migration, and has written books on European immigration policy, democracy and the nation-state.
James F. Hollifield gained his PhD in political science. He is Arnold Professor of political economy and director of international studies in Southern Methodist University, Dallas, and has served as associate director of research at the CNRS in Paris and at Harvard Center for International