Terry L. Friesz is the Harold and Inge Marcus Chaired Professor of Industrial Engineering at Penn State. His research interests include network design, logistics, spatial economics, dynamic traffic assignment, dynamic pricing, differential games, and complex systems. He received his Ph.D. from Johns Hopkins University. He has been a faculty member at George Mason University, MIT and the University of Pennsylvania, where he held the UPS Foundation Chair in Transportation. His work has appeared in Mathematical Programming, Operations Research, Transportation Science, EJOR, J. Regional Science, Regional Science and Urban Economics, Environment and Planning A, and Transportation Research B. His book Dynamic Optimization and Differential Games was recently published by Springer.