| 1995, 2000, 2016-2018 | University of Pennsylvania, The Wharton School, Philadelphia, Pennsylvania, USA | | | | Gastprofessor |
| 2013, 2016, 2018 | Kobe University, Graduate School of Business Administration, Kobe, Japan | | | | Gastprofessor |
| 2007-2012 | International Commerce Review: ECR Journal, ECR Europe, Brussels, Belgium (Inaugural Issue 2001) | | | | Co-Editor-in-Chief mit Professor Daniel T. Jones (University of Cardiff & Lean Enterprise Academy) |
| 2004-2005 | TIAS Business School in Tilburg, Niederlande und in Budapest, Ungarn | | | | Gastprofessor |
| 2004-2005 | ZfU International Business School, Thalwil, Schweiz | | | | Gastprofessor |
| 2004 | Central European University, CEU Business School, Budapest, Ungarn | | | | Gastprofessor |
| 2004 | University of Navarra, IESE Business School, Barcelona, Spanien | | | | Gastprofessor |
| 2004 | University of St. Gallen, HSG, St. Gallen, Schweiz | | | | Gastprofessor |
| 1999-2002 | Leipzig School of Management (HHL), Leipzig, Deutschland | | | | Gastprofessor |
| 1998-1999 | Vienna University of Economics and Business, Wien, Österreich | | | | Gastprofessor |
| 1997 | INSEAD, Fontainebleau, Frankreich | | | | Gastprofessor |
| Seit 1996 | INSEAD-WHU Industrial Excellence Award (unterstützt von WirtschaftsWoche bis 2015) | | | | Mitbegründer und Akademischer Direktor |
| 1995 | University of Western Ontario, Ivey Business School, Ontario, Kanada | | | | Gastprofessor |
| 1994, 1997 | University of Chicago, Booth Graduate School of Business, Chicago, Illinois, USA | | | | Gastprofessor |
| Seit 1993 | WHU – Otto Beisheim School of Management, Vallendar, Deutschland | | | | Lehrstuhlinhaber, Lehrstuhl für Produktionsmanagement |
| 1992 | WHU – Otto Beisheim School of Management, Vallendar, Deutschland | | | | Gastprofessor |
| 1991-1993 | University of Chicago, Booth Graduate School of Business, Chicago, Illinois, USA | | | | Assistenzprofessor für Produktions- und internationales Management |
| 1992 | Hewlett-Packard Corporation. Strategic Modeling and Planning Group, Menlo Park, California, USA | | | | Residenz Fakultät (12 Monate) |
| 1990 | University of Chicago, Booth Graduate School of Business, Chicago, Illinois, USA | | | | Dozent für Produktions- und internationales Management |
| 1986-1990 | University of Pennsylvania, The Wharton School, Decision Sciences Department, Philadelphia, Pennsylvania, USA | | | | Ph.D. in Operations Management |
| 1989 | Stanford University, Graduate School of Business, Palo Alto, California, USA | | | | Forschungsstipendiat (8 Monate) |
| 1988 | INSEAD, Fontainebleau, Frankreich | | | | Forschungsstipendiat (2 Monate) |
| 1988 | Procter & Gamble, Management Systems Division, Cincinnati, Ohio, USA | | | | Sommerpraktikum (2 Monate) |
| 1987 | Siemens Research & Technology Laboratory, Princeton, New Jersey, USA | | | | Sommerpraktikum (4 Monate) |
| 1985-1986 | Siemens Research & Technology Laboratory, Princeton, New Jersey, USA | | | | Masterarbeit (3+6 Monate) |
| 1981-1986 | Karlsruhe Institute of Technology (KIT), Karlsruhe, Deutschland | | | | Dual Master in Computer Science/Operations Research und Betriebswirtschaft |