Sarah Fine is a Lecturer in Philosophy at King's College London. She was previously a Research Fellow at Corpus Christi College, Cambridge. She specialises in issues relating to migration and citizenship. Her forthcoming book, Immigration and the Right to Exclude (OUP), sets out to challenge the idea that the state has a moral right to exclude would-be immigrants. Her publications include 'Freedom of Association Is Not the Answer' in Ethics.
Lea Ypi is Associate Professor in Political Theory at the London School of Economics and Political Science and Adjunct Associate Professor of Philosophy at the Australian National University. She is the author of Global Justice and Avant-Garde Political Agency (Oxford University Press 2012), The Meaning of Partisanship, (OUP 2016, with Jonathan White) and the co-editor of Kant and Colonialism (Oxford Univrsity Press 2014, with Katrin Flikschuh).