A C Grayling, professor of philosophy, Birkbeck College, University of London; Anthony Browne, policy director, City Hall; Baroness Julia Neuberger DBE, rabbi, social reformer and member of the House of Lords and Naomi Eisenstadt, director, Social Exclusion Task Force, Cabinet Office

Ken Mayhew, fellow and tutor in economics at Pembroke College, Oxford University

Parag Khanna, Director of the Global Governance Initiative of the American Strategy Program at the New America Foundation