Gerald Gaus is currently the James E. Rogers Professor of Philosophy at the University of Arizona. He was previously Professor of Philosophy and Political Economy at Tulane University. He is the author of a number of books, including On Philosophy, Politics, and Economics (2008), Contemporary Theories of Liberalism (2003) and Justificatory Liberalism (1996). He has been an editor of the Australasian Journal of Philosophy and was a founding editor of Politics, Philosophy & Economics. His essay 'On Justifying the Moral Rights of the Moderns' won the 2009 American Philosophical Association's Kavka Award.