Professor Emeritus, Georgetown University

Professor of Sociology of Religion, University of Lausanne

Professor of Cognitive Anthropology, Queen's University Belfast

Professor in the Study of Religion, University of Helsinki

Associate Professor of Sociology, Colby College

Sociology Boston College

Professor Emeritus of Sociology, Bordeaux University

Yildiz Technical University, Professor of Humanities

retired

Department of Historical, Philosophical and Religious Studies, Umeå University