Martin O'Neill is Senior Lecturer in Moral & Political Philosophy in the Department of Politics at the University of York. He was previously Hallsworth Fellow in Political Economy at the University of Manchester and, before that, Research Fellow in Philosophy and Politics at St John's College, University of Cambridge. He holds a BA in Philosophy, Politics and Economics (PPE) and a B.Phil. in Philosophy, both from Balliol College, University of Oxford, and a Ph.D. in Philosophy from Harvard University. He has been a Visiting Hoover Fellow in Economic and Social Ethics at the Chaire Hoover d'éthique économique et sociale at the Université catholique de Louvain. He is the co-editor with Thad Williamson of Property-Owning Democracy: Rawls and Beyond (Boston: Wiley-Blackwell, 2012), and with Shepley Orr of Taxation and Political Philosophy (Oxford University Press, forthcoming). He is an Associate Editor of Renewal: a Journal of Social Democracy.