Samuel Müller IBM Research Division, Zurich Research Laboratory, Säumerstrasse 4, 8803 Rüschlikon, Switzerland (smlzurich.ibm.com). Mr. Müller received an M.S. degree in computer science and an M.A. degree in economics, both from the University of Zurich. In 2004 he joined IBM Research in Zurich, where he is currently doing research in the area of risk and compliance. In parallel, he is working toward his doctorate degree as an external Ph.D. student at the Swiss Federal Institute of Technology (ETH) Zurich, where he is a member of the Information Security group. Mr. Müller's research interests include modal logics, formal methods and modeling, risk and compliance management, game theory, and economics.

Chonawee Supatgiat Research Group, Thales Fund Management, 140 Broadway, New York, New York 10005 (chsthales.com). The work described in this paper was performed while Dr. Supatgiat was a Research Staff Member in the Business Optimization group at the IBM Zurich Research Laboratory, Switzerland. Dr. Supatgiat received a B.S.E. degree in industrial engineering from Chulalongkorn University, Thailand, in 1993, and M.S.E. and Ph.D. degrees in industrial and operations engineering from the University of Michigan at Ann Arbor in 1996 and 1999, respectively. Before joining IBM in 2004, he had worked in quantitative research functions at Enron, Tractebel/Suez, and RWE Group. He joined Thales in 2006. Dr. Supatgiat's research interests include sequential decision-making processes, large-scale stochastic optimization, financial engineering, and game theory.