Michael Blake is professor of philosophy and public affairs, and director of the Program on Values in Society at the University of Washington. He writes on international justice and the ethics of migration. His most recent book is Debating Brain Drain: May Governments Restrict Emigration? (2015), written with Gillian Brock. He is currently writing a book on the relationship between migration, international justice, and beneficence. miblake@uw.edu

Simon Caney is professor in political theory at the University of Oxford and Fellow and Tutor at Magdalen College. He works on issues in contemporary political philosophy, and focuses in particular on environmental, global, and intergenerational justice. He is completing two books—Global Justice and Climate Change (with Derek Bell) and On Cosmopolitanism—both of which are under contract with Oxford University Press. He is the author of Justice Beyond Borders (2005) and a co-editor with Stephen Gardiner, Dale Jamieson, and Henry Shue of Climate Ethics (2010). Recent articles have been published in Philosophy & Public Affairs and Journal of Political Philosophy. simon.caney@magd.ox.ac.uk

Pablo Gilabert, a native of Argentina, is associate professor in the Department of Philosophy at Concordia University (Montreal, Canada). He has been an HLA Hart Visiting Fellow at the University of Oxford, a DAAD Fellow at the University of Frankfurt, a Visiting Fellow at the Australian National University, and a Laurance S. Rockefeller Visiting Faculty Fellow in the Center for Human Values at Princeton University. His papers have appeared in Journal of Political Philosophy, Political Theory, Philosophical Quarterly, Philosophy and Phenomenological Research, Philosophical Studies, Political Studies, and Ethical Theory and Moral Practice. He is the author of From Global Poverty to Global Equality: A Philosophical Exploration (2012). Pablo.Gilabert@concordia.ca

Richard J. Goldstone was a judge in South Africa for twenty-three years, the last nine as a Justice of the Constitutional Court. Since retiring from the bench he has taught as a visiting professor in a number of U.S. law schools. Recently he has been teaching at the University of Virginia School of Law and the Central European University in Budapest. In the fall of 2014 he was the first Scholar-in-Residence at the new Sorensen Center for International Peace and Justice at the City University of New York School of Law. From August 1994 to September 1996 he was the chief prosecutor of the United Nations International Criminal Tribunals for the former Yugoslavia and Rwanda. He is an honorary member of the Association of the Bar of the City of New York and a foreign member of the American Academy of Arts and Sciences. He is an Honorary Bencher of the Inner Temple, London, and an Honorary Fellow of St. John's College, Cambridge. He is an honorary life member of the International Bar Association and Honorary President of its Human Rights Institute. rjgoldstone@iafrica.com

Holly Lawford-Smith is a lecturer in philosophy at the University of Sheffield. She is currently working on a three-year Marie Curie project titled “Modeling International Cooperation,” focused on cooperation among states in addressing climate change. She previously held postdoctoral positions at the Australian National University (ANU) and Charles Sturt University, working on the obligations held by beneficiaries of injustice and on climate ethics. Her PhD is from the ANU and her MA and undergraduate degree from the University of Otago in Dunedin, New Zealand. She has worked in the past on political feasibility and nonideal theory, and now works mainly on collective action. h.lawford-smith@sheffield.ac.uk

Richard W. Miller is Hutchinson Professor in Ethics and Public Life at the Cornell Department of Philosophy. His articles have appeared in many journals, including “The Ethics of America's Afghan War” in Ethics & International Affairs (Summer 2011). His most recent book is Globalizing Justice: The Ethics of Poverty and Power (2010). He is currently writing a book on the moral foundations of social democracy. rwm5@cornell.edu

David Runciman is professor of politics in the Department of Politics and International Studies at the University of Cambridge, specializing in the history of modern political thought and theories of democracy and the state. His most recent books are The Confidence Trap: A History of Democracy in Crisis from World War I to the Present (2013) and Politics: Ideas in Profile (2014). He is currently joint principal investigator on two major research projects based in Cambridge: Conspiracy and Democracy (http://www.conspiracyanddemocracy.org/) and Technology and Democracy (http://www.techdem.crassh.cam.ac.uk/). He is a contributing editor of the London Review of Books. dwr12@cam.ac.uk

Anna Stilz is associate professor of politics at Princeton University and director of the undergraduate certificate program in Values and Public Life at the University Center for Human Values. She is the author of Liberal Loyalty: Freedom, Obligation, and the State (2009) and has published articles on questions of political membership, authority and political obligation, nationalism, territorial rights, and collective agency. She is currently working on a book on self-determination and states' rights to territory. astilz@Princeton.edu