Jahel Queralt is a Serra Hunter Lecturer in Law at Pompeu Fabra University. Previously, she has been a postdoctoral fellow at the Centre for Advanced Studies Justitia Amplificata at the Goethe-Universität of Frankfurt and at the Ethik Zentrum at the University of Zurich. Her research interests include liberalism, distributive justice, productive justice and human rights. Her work has appeared in journals such as Law and Philosophy, Ratio Juris, and Analyse und Kritik.

Bas van der Vossen is Associate Professor in the Smith Institute of Political Economy and Philosophy, and the Philosophy Department at Chapman University. His research is in political philosophy. He’s the co-author of　In Defense of Openness, with Jason Brennan (2018) and Debating Humanitarian Intervention, with Fernando Tesón (2017) and co-edited the Routledge Handbook of Libertarianism (Routledge, 2017). He is currently an Associate Editor of the journal Social Philosophy and Policy. Bas earned his DPhil from the University of Oxford.