| Degree Received | University | Year | |
| Vordiplom (Bachelor in Mathematics) | University of Bochum | 1971 | |
| Diplom (Master in Mathematics) | University of Bochum | 1973 | |
| Ph. D. (Economics) | University of Bonn | 1977 | |
| Habilitation (Operations Research) | University of Bonn | 1981 |