Alexander Taghi Tabarrok holds the Bartley J. Madden Chair in Economics at the Mercatus Center and is a professor of economics at George Mason University. He is the coauthor, with Tyler Cowen, of the popular economics blog Marginal Revolution and cofounder of the online educational platform Marginal Revolution University. He is the author of several books, including the introductory economics textbooks, Modern Principles of Economics. His articles have appeared in the New York Times, the Washington Post, the Wall Street Journal, and many other prestigious publications.