Plenary talks:   O. Rentz (Karlsruhe): Contribution of Operations Research to Environmental Policy  D. Luenberger (Stanford University, USA): Optimization and Modern Pricing Theory J. Caulkins (Carnegie Mellon University, USA): The Role of Operations Research in Public Policy W. Pierskalla (University of California, Los Angeles, USA): Blood bank inventory control - a supply chain approach   Semiplenary talks:   P. Embrechts (ETH Zürich) Extremes, Financial Risk Management G. Rote (FU Berlin) Integer programming in low dimensions M. Deistler (TU Wien) System Identification - A Survey H. Locarek-Junge (TU Dresden) Identifikation und Aggregation von Finanzrisiken P. Mirchandani (University of Arizona, USA) Embedded algorithms in real time transportation systems H. Tempelmeier (Universität zu Köln) Design of Flow Production Systems under Stochastic Conditions