1999-

Full professor of social policy, University of Bielefeld, Department of Sociology, Germany

1998

Visiting scholar at Trondheim University and at Nordland Research Institute, Bodo, Norway

1997

Visiting scholar at the Centre for Research in Social Policy (CRSP), Loughborough University, England

1996

Visiting professor at the Free University, Department of Sociology, Berlin

1992-99

Reader in sociology, University of Bremen, Germany

1989-92

Research officer, Collaborative Research Centre of the German Research Council "Status Passages and Risks in the Life Course" (Sfb 186), University of Bremen, Germany

1985-86

Lecturer in sociology, University of Bielefeld

1993

Habilitation in sociology and social policy, University of Bremen, Germany (qualification for professorship in German academic system)

1989

Ph.D. (Econ.), University of London (London School of Economics, Department of Social Administration; supervisor Prof. Robert Pinker)

1983

Degree in sociology (Diplom/Master), University of Bielefeld, Germany

1977

Degree in mathematics (Diplom/Master), University of Bonn