David S Evans is an economist. He is Chairman of Global Economics Group, based in its Boston office, and is Executive Director of the Jevons Institute for Competition Law and Economics and Visiting Professor at University College London. His academic work has focused on industrial organization, including antitrust economics, with a particular expertise in multisided platforms, digital economy, information technology, and payment systems. He has authored 8 books, including two award winners, and more than 100 articles in these areas. His most recent book, with Richard Schmalensee, is Matchmakers: The New Economics of Multisided Platforms. Dr Evans has taught courses related to antitrust economics, primarily for graduate students, judges and officials, and practitioners, and has authored handbook chapters on various antitrust subjects. He has served as a testifying or consulting expert on many significant antirust matters in the United States, European Union, and China. He has a PhD in economics from the University of Chicago.