Jonathan Riley is Professor, Department of Philosophy and Murphy Institute of Political Economy, Tulane University. He is a founding editor of the Sage journal Politics, Philosophy & Economics (PPE), now in its tenth year. He received his doctorate from Oxford in 1983, under the joint supervision of Amartya Sen and John Gray. Riley's research interests are in moral, legal and political philosophy (e.g., theories of justice and rights, varieties of utilitarianism, ethical pluralism and its political implications, democratic theory, etc).

Professor Martha Nussbaum is the Ernst Freund Distinguished Service Professor of Law and Ethics, appointed in the Philosophy Department, Law School, and Divinity School. She is an Associate in the Classics Department and the Political Science Department, a Member of the Committee on Southern Asian Studies, and a Board Member of the Human Rights Program. She is the founder and Coordinator of the Center for Comparative Constitutionalism.

Anthony Laden is a Professor of Philosophy at University of Illinois Urbana-Champaign. He works in moral and political philosophy, where his research focuses on the nature of practical reason and reasoning, liberalism, democratic theory, feminism and the politics of identity, and civic education. He also has interests in the history of moral and political philosophy, especially Rousseau, Kant and Hegel.

A. J. Julius is a philosopher and economist who has written about economic growth, income distribution, justice, collective action, reasons, wrongness, and persons.

Daniel M. Hausman is the Herbert A. Simon and Hilldale Professor of Philosophy at the University of Wisconsin-Madison. His research has centered on epistemological, metaphysical, and ethical issues lying at the boundaries between economics and philosophy. A co-founder of the journal, Economics and Philosophy, his most recent book is Preference, Value, Choice and Welfare, published by Cambridge University Press in 2011. In 2009, Hausman was elected to the American Academy of Arts and Sciences.

Jaime Ahlberg is an Assistant Professor of Philosophy at the University of Florida. Her dissertation was an exploration of the interaction between ideal theory (typified by Rawls's justice as fairness) and nonideal theory (which attempts to theorize justice in the world as it is). Her areas of specialization include ethics and political philosophy, and her areas of concentration include the philosophy of education, bioethics, and feminist philosophy.

Ahlberg received her Ph.D. in Philosophy at the University of Wisconsin-Madison in 2010.