Carl is the Transamerica Professor of Business Strategy at the Haas School of Business, University of California at Berkeley, and a Senior Consultant at Charles River Associates. He has published extensively in the areas of industrial organization, competition policy, the economics of innovation and competitive strategy. Professor Shapiro is co-author with Hal R. Varian of Information Rules: A Strategic Guide to the Network Economy. He also served as Deputy Assistant Attorney General for Economics in the Antitrust Division of the U.D. DOJ and has since consulted with both the DOJ and the FTC in addition to his private clients.