1981 – |
Member, Scientific Board of the Research Institute of the German Foreign Policy Society ("Forschungsinstitut der Deutschen Gesellschaft für Auswärtige Politik") |
| 2001 | Ludwig Erhard Prize for Economic Journalism |
| 1983 – 2004 | Director, Institute of German Economy ("Institut der deutschen Wirtschaft") in Cologne |
| 1981 – 1983 | Member, Kronberger Scientific Council |
| 1978 – 1982 | Committee for Development, United Nations |
| 1976 – 1982 | Member, German Council of Economic Experts |
| 1974 – 1985 | Honorary Professor, Kiel University |
| 1969 – 1983 | Global Economy Institute ("Institut für Weltwirtschaft") in Kiel, Left as Vice President |