Born on 2 July 1957 in Chicago, Illinois, U.S.A.
University of Colorado, Boulder, Colorado, Study of Anthropology and Religious Studies, B.A. Magna cum laude (1979); University of California, Santa Barbara, California, Study of Religious Studies, M.A (1982); University of Oxford, Study of Social Anthropology, D.Phil. (1988).
Professor of Transnational Anthropology, University of Oxford; Director, Economic & Social Research Council (UK) - Centre on Migration, Policy and Society (COMPAS); Senior Research Fellow, Linacre College, Oxford; Co-Director, Institute for International Migration (IMI), James Martin 21st Century School, University of Oxford;
[from November 2007] Director of the Max-Planck-Institute for the Study of Ethnic and Religious Diversity, Göttingen