Stan Liebowitz is the Ashbel Smith Professor of Managerial Economics at the University of Texas at Dallas. He has auth­ored many articles examining the influence of new technology on intellectual property, beginning with a study on photo­copying’s impact, for the Canadian government, and continu­ing with digital copying. He has also written numerous articles about network effects and a few articles about measuring research performance. Most of his research is available on the SSRN. His email is liebowit@​utdallas.edu.