Since October 2004, holder of the Chair for International Health Management at the Frankfurt School of Finance & Management, Academic Director of the MBA – International Hospital and Healthcare Management programme and head of the Institute for International Health Management. From 1993 to 1999, research assistant at the Institute of Industrial and Health Care Management, University of Münster, Germany (Prof. Dr. Dietrich Adam). In 1997, awarded a degree as Doctor of Business Administration (dissertation topic: Fuzzy-Logic and Production Planning and Control). From 1999 to 2004, postdoctoral research assistant at the Chair of Operations Management, Bayreuth University, Germany (Prof. Dr. J. Schlüchtermann). January 2004, Habilitation (qualification for rank as professor; topic: Capacity Planning and Organisation for Interactive Services in Hospitals). In March 2004, visiting professor at Shanghai International Studies University.