Bachelor Political Economy, University Basel, Switzerland, 1967. Doctor Economics, University Basel, 1969.
Lecturer University Konstanz, Federal Republic Germany, 1976-1978. Professor economics Free University Berlin, 1978, University German Armed Forces, Munich, 1978-1985, Berlin Polytechnic University, 1985-1992, Humboldt University Berlin, since 1992. Member board academy advisors Federal Ministry Economics and Technology.
Member science advisory board Regulatory Commission of Telecomms. and Posts.
Member European Public Choice Society (president 1984-1985).
Married Catherine Hélène Zahn, May 13, 1977. Children: Ludwig, Rudolf.