Bachelor of Laws, University Cologne (Germany), 1964. Doctor of Philosophy, University Michigan, Ann Arbor, 1975.
Assistant professor political science University Michigan, Ann Arbor, 1972-1979. Associate professor political science University Chicago, Chicago, 1979-1986. Professor mass communications studies Free University, Berlin, since 1986, chair research commission, 1987-1992, dean communications division, 1987-1989.
Director inter-university program on methods of social research University Michigan, Ann Arbor, 1971-1978. Consultant Statistical Package for the Social Sciences, Chicago, since 1980. Visiting fellow Stanford Institute for Quantitative Study of Society, Stanford University, since 2000.
Member Berlin Cable television Commission, 1986-1989.
Married Gerlinde A. Schuster, August 1964 (divorced 1991). Children: Felix Adrian, Victor Sebastian. Married Katharina Maria Mensing, September 1994.