Benjamin Ferguson is Professor of Philosophy and director of the Philosophy, Politics, and Economics program at University of Warwick. His research is in moral and political philosophy and focuses on the ethics of market-based interactions like exploitation and fraud. He is co-editor of the Routledge Companion to Libertarianism. Matt Zwolinski is Professor of Philosophy and director of the Center for Ethics, Economics, and Public Policy at University of San Diego. His research focuses on the intersection of philosophy, law, and economics, with a special interest in issues of exploitation, basic income, and libertarian political theory. He is the editor of Arguing About Political Philosophy, and co-editor of the Routledge Companion to Libertarianism. He is the co-author of The Individualists: Radicals, Reactionaries, and the Struggle for the Soul of Libertarianism, and Universal Basic Income: What Everyone Needs to Know.