After serving as Robert G. Fuller, Jr. Professor of Law and director of the Program on Law, Environment and Economy at the University of Pennsylvania Law School, Johnston joined the University of Virginia Law School faculty in 2010. Johnston’s current scholarship focuses on the law and economics of environmental and consumer regulation.
He has published dozens of articles in law journals, such as the Yale Law Journal, and in peer-reviewed economics journals, such as the Journal of Law, Economics and Organization. He has served on the Board of Directors of the American Law and Economics Association, on the National Science Foundation’s Law and Social Science grant review panel, and on the Board of the Searle Civil Justice Institute. After earning his PhD in economics and JD from the University of Michigan, Johnston clerked for Judge Gilbert S. Merritt on the U.S. Court of Appeals for the Sixth Circuit, and he has been awarded fellowships at Yale Law School, the University of Southern California Gould School of Law, the American Academy in Berlin and the Property and Environment Research Center.