Timothy Urban, PhD
Timothy L. Urban, Professor Emeritus of Operations Management, previously held the J. Bradley Oxley Chair in Business and was Professor of Operations Management at The University of Tulsa. He taught graduate and undergraduate courses in operations management, business analytics, and business statistics, and was the recipient of several teaching awards, including the university-wide award. In addition to serving on the faculty at TU, he served as the Director of the School of Finance, Operations Management, and International Business; as the department chair of Quantitative Methods and MIS; as well as interim director of graduate business studies. Prior to coming to the university, Tim spent ten years in industry with General Dynamics, Johnson & Johnson, and the Federal Reserve Bank of Dallas. His current research interests include inventory and production modeling, facility design, sports analytics, and stochastic vehicle routing. In 2015, Tim was ranked as one of the top-100 contributors to the operations-management research literature (according to an article published in the International Journal of Production Research). He was the founding editor—now Honorary Editor—for the International Journal of Inventory Research, currently serves as North American Regional Editor for the International Journal of Operations and Quantitative Management, and has been a Guest Editor for the International Journal of Production Economics, the International Journal of Production Research, and the International Journal of Manufacturing and Technology Management. He is a member of INFORMS, MSOM, POMS, and IISE, and is a registered professional engineer.
Stochastic Vehicle Routing
Ehmke, Jan Fabian; Ann Melissa Campbell; and Timothy L. Urban, 2015. “Ensuring Service Levels in Routing Problems with Time Windows and Stochastic Travel Times,” European Journal of Operational Research, 240(2), 539–550.
Urban, Timothy L., 2013. “The Effect of Playoff Series Length on the Outcome,” International Journal of Revenue Management, 7(3/4), 183–194.
Urban, Timothy L., 2012. “An Extension of Inventory Models Incorporating Financing Agreements with Both Suppliers and Customers,” Applied Mathematical Modelling, 36(12), 6323–6330.
Urban, Timothy L., 2012. “The Existence of Serial Correlation and Its Effect on the Format of a Championship Playoff Series,” Journal of the Operational Research Society, 63(7), 883–889.
Urban, Timothy L., 2009. “Establishing Delivery Guarantee Policies,” European Journal of Operational Research, 196(3), 959–967.
Urban, Timothy L., 2008. “Coordinated Pricing and Inventory Decisions under Reference Price Effects,” International Journal of Manufacturing Technology and Management, 13(1), 78–94.
Urban, Timothy L., 2008. “An Extension of Inventory Models with Discretely-Variable Holding Costs,” International Journal of Production Economics, 114(1), 399–403.
Urban, Timothy L., 2007. “The Effect of Margin Guarantees on Pricing and Production,” International Journal of Manufacturing Technology and Management, 12(4), 314–326.
Urban, Timothy L., 2005. “Inventory Models with Inventory-Level-Dependent Demand: A Comprehensive Review and Unifying Theory,” European Journal of Operational Research, 162(3), 792–804.
Urban, Timothy L., 2005. “A Periodic-Review Model with Serially-Correlated, Inventory-Level-Dependent Demand,” International Journal of Production Economics, 95(3), 287–295.
Urban, Timothy L. and R. C. Baker, 2004. “Optimal Control of Processes with Trended Averages,” International Journal of Operations and Quantitative Management, 10(1), 23–36.
Urban, Timothy L., 2002. “The Interdependence of Inventory Management and Retail Shelf Management,” International Journal of Physical Distribution & Logistics Management, 32(1), 41–58.
Urban, Timothy L., 2000. “Reorder Level Determination with Serially-Correlated Demand,” Journal of the Operational Research Society, 51(6), 762–768.
Urban, Timothy L., 2000. “Supply Contracts with Periodic, Stationary Commitment,” Production and Operations Management, 9(4), 400–413.
Urban, Timothy L., 1998. “Analysis of Production Systems When Run Length Influences Product Quality,” International Journal of Production Research, 36(11), 3085–3094.
Urban, Timothy L., 1998. “Optimal Balancing of U-Shaped Assembly Lines,” Management Science, 44(5), 738–741.
Urban, Timothy L., 1998. “An Inventory-Theoretic Approach to Product Assortment and Shelf-Space Allocation,” Journal of Retailing, 74(1), 15–35.
Urban, Timothy L., 1998. “Solution Procedures for the Dynamic Facility Layout Problem,” Annals of Operations Research, 76(1), 323–342.
Urban, Timothy L. and R. C. Baker, 1997. “Optimal Ordering and Pricing Policies in a Single-Period Environment with Multivariate Demand and Markdowns,” European Journal of Operational Research, 103(3), 573–583.
Urban, Timothy L., 1995. “Inventory Models with the Demand Rate Dependent on Stock and Shortage Levels,” International Journal of Production Economics, 40(1), 21–28.
Urban, Timothy L., 1993. “A Heuristic for the Dynamic Facility Layout Problem,” IIE Transactions, 25(4), 57–63.
Urban, Timothy L., 1992. “An Inventory Model with an Inventory-Level-Dependent Demand Rate and Relaxed Terminal Conditions,” Journal of the Operational Research Society, 43(7), 721–724.
Urban, Timothy L., 1992. “Computational Performance and Efficiency of Lower Bound Procedures for the Dynamic Facility Layout Problem,” European Journal of Operational Research, 57(2), 271–279.
Urban, Timothy L., 1992. “Deterministic Inventory Models Incorporating Marketing Decisions,” Computers & Industrial Engineering, 22(1), 85–93.
Baker, R. C. and Timothy L. Urban, 1991. “Deterministic Fixed Order-Level Inventory Models: An Application for Replenishment of Radioactive Source Material for Irradiation Sterilization,” European Journal of Operational Research, 50(3), 249–256.
Urban, Timothy L., 1989. “Combining Qualitative and Quantitative Analyses in Facility Layout,” Production and Inventory Management Journal, 30(3), 73–77.
Siems, Thomas F. and Timothy L. Urban, 1988. “What MS/OR Groups Do: The Federal Reserve Bank of Dallas,” Interfaces, 18(1), 78–83.
Baker, R. C. and Timothy L. Urban, 1988. “Single-Period Inventory Dependent Demand Models,” Omega–The International Journal of Management Science, 16(6), 605–607.
Baker, R. C. and Timothy L. Urban, 1988. “A Deterministic Inventory System with an Inventory-Level-Dependent Demand Rate,” Journal of the Operational Research Society, 39(9), 823–831.
Urban, Timothy L., 1987. “A Multiple Criteria Model for the Facilities Layout Problem,” International Journal of Production Research, 25(12), 1805–1812.
Urban, Timothy L., 2003. “Optimal Dynamic Facility Design of Manufacturing Systems.” In Cornelius T. Leondes (Ed.), Computer Aided and Integrated Manufacturing Systems, Volume 3: Optimization Methods, Singapore: World Scientific Publishing Co. Pte. Ltd., pp. 1–23.
Written Case with Instructional Materials
Urban, Timothy L., “Case Study: Des Moines National Bank.” In Jay Heizer and Barry Render, Operations Management, Fourth Edition (1996), Fifth Edition (1999), and Sixth Edition (2001), Upper Saddle River, NJ: Prentice-Hall, Inc. Also in Jay Heizer and Barry Render, Principles of Operations Management, Second Edition (1997), Third Edition (1999), and Fourth Edition (2001), Upper Saddle River, NJ: Prentice-Hall, Inc.
Urban, Timothy L., 2008. “Editorial,” Introduction to the Special Issue on the Interface between Manufacturing and Other Fields, International Journal of Manufacturing Technology and Management, 13(1), 1–3.
- Seminar in SAS
- Operations Management
- Regression and Statistical Learning
- Independent Study in Quantitative Analysis
- Statistics II
- Decision Sciences Institute
- The Institute of Management Sciences
- Operations Research Society of America
- Alpha Iota Delta
- Institute of Industrial and Systems Engineers
- Institute for Operations Research and the Management Sciences
- Sigma Iota Epsilon
- Production and Operations Management Society
- Beta Gamma Sigma
- International Society for Inventory Research
- Manufacturing and Service Operations Management Society
- Phi Kappa Phi
Awards & Honors
- Professor of the Year
- Mayo Excellence in Research Award
- Distinguished Alumni Award
- OM Group: Ranked 44th most productive business school for production/operations management research
- Dean’s Teaching Innovation Award
- OM Group: Ranked 48th most productive university for contribution to the operations research/management science practice literature
- Ranked as the 8th most productive individual of production/operations management research at U.S. business schools
- Collins Endowed Professorship of Operations Management
- OM Group: Ranked as 33rd most productive quantitative/technical department in schools of business
- Outstanding Professor and Best Class
- University Outstanding Teaching Award
- Outstanding Teacher Award
- Scotch and Smokes Professor of the Year Award
- Mayo Excellence in Teaching Award
- OM Group: Ranked as the 37th most productive institution in sports analytics research
- J. Bradley Oxley Endowed Chair of Business
- Certificate of Outstanding Contribution in Reviewing
- Certificate of Appreciation
- Ranked as one of the top-100 individuals that have had the greatest contribution to the field of operations management
- Honorary Editor
- Highly-cited European Journal of Operational Research paper on sport management
- Highly-cited Journal of Retailing paper on retail store operations
- Best paper award has been named “The Timothy Urban Best Paper Award”