Diplom-Volkswirt, University Tuebingen, 1973. Doctor rerum naturalium (Doctor in Sciences), University Dortmund, 1978. Habilitation in Demography and Applied Statistics, University Dortmund, 1984.
Assistant professor University Dortmund, 1974—1978, privatdozent, demography, since 1984. Visiting fellow Harvard University, Cambridge, Massachusetts, 1982—1984. Professor statistics University Applied Sciences, Kempten, Germany, 1985-2010. Since 2010 privatdozent for Demography at the department of statistics, Technical University of Dortmund, Germany.