In Chapter 8 of 21 in his 2011 Capture Your Flag interview with host Erik Michielsen, business school professor Ben Hallen answers "What Was Most Challenging About Earning Your PhD at Stanford University?" Hallen finds the greatest challenge rising to the expected level of research. Understanding what it means to create high caliber research. Not only is it rigorous in understanding what is the right behavior to use, but also rigorous in that it strives to learn something that is not understood yet that applies in strategy and management. Hallen is an Assistant Professor of Strategy and Entrepreneurship at London Business School. Previously, he was Assistant Professor of Management and Organization at University of Maryland. Hallen earned his PhD from Stanford University and its Stanford Technology Venture Program (STVP). He has been a startup CTO and graduated from the University of Virginia with a BS in Electrical Engineering and a Masters in Computer Science.