His research interests include decision analysis and numerical approaches to modeling optimal managerial decision-making and its effect on project valuation, with application to investments in energy exploration and production. He formerly worked for BP and BP heritage companies Vastar Resources and ARCO Oil and Gas in a variety of environmental engineering, reservoir engineering, financial management and planning roles. Dr. Hahn holds a B.S. degree in petroleum engineering, M.S. degree in environmental engineering, MBA and Ph.D. in management science, all from the University of Texas at Austin.