Visiting Professor, University of Tsukuba, Japan (1997/98), Speaker of the Special Research Area "Adaptive Information Systems and Modeling in Economics and Management Science'' (2000--2005), Coordinator of the WWTF project "Integrated Demand and Supply Chain Management.'' Within Call "Mathematics and ...'' (2005--2008). Publications, e.g. in Management Science, MIS Quarterly, Marketing Science, Journal of Management Information Systems, Professor for Business Administration and MIS at the Vienna University of Economics and Business Administration, Institute for Production Management. Head of Department for Information Systems and Process Management. Research Areas: supply chain management, marketing science, revenue management.