Doctor in Statistics, Universities Munich and Marburg, Germany, 1967. Doctor of Economics, Universities Munich and Marburg, Germany, 1971.
Professor statistics and economics University Essen, Germany, since 1976. Consultant Statistical Office of Liberia, Monrovia, 1984—1985. Lecturer and course leader Eurostat, Luxembourg, 1992—2002.
Member of International Statistical Institute, German Statistical Association.
Married Yanqian Fan.