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My research in the field of industrial organization currently focuses on the economics of digital information goods markets (with a particular interest in scientific publishing) and the implications of the online environment for competition policy. This research has been published in various scholarly journals, including the American Economic Review, the Rand Journal of Economics, the Review of Economics and Statistics, and Nature and has been supported by grants from the Andrew W. Mellon Foundation, the NET Institute, the Open Society Institute and the Alfred P. Sloan Foundation..

My other affiliations include the Sloan Industry Studies Program and the State Center’s Panel of Economists. As a State Center Economist, I have assisted Attorney Generals from different states, including California, Connecticut, Illinois, Massachusetts and New York, on a variety of antitrust investigations.