Nancy Fraser is Loeb Professor of Philosophy and Politics at the New School for Social Research, Einstein Fellow of the city of Berlin, and holder of the "Global Justice" Chair at the Collège d'études mondiales in Paris. Her books include Redistribution or Recognition; Adding Insult to Injury; Scales of Justice; Justice Interruptus; and Unruly Practices.

Kevin Olson is Associate Professor of Political Science at the University of California, Irvine. He is the author of Reflexive Democracy: Political Equality and the Welfare State.

Judith Butler is Maxine Elliot Professor in the Departments of Rhetoric and Comparative Literature at the University of California, Berkeley. She is the author of Frames of War, Precarious Life, The Psychic Life of Power, Excitable Speech, Bodies that Matter, Gender Trouble, and with Slavoj Žižek and Ernesto Laclau, Contingency, Hegemony, Universality.