By Georg Sorensen
By G. Williams
By Kenneth A. Loparo, J. Uhr
By W. Linder
By David Austen-Smith, Jeffrey S. Banks
By T. James
By B. Cautres, A. Muxel
By A. Kolin
By Josiah Ober
By Jonathan Sacks
By Bernie Sanders
By Martin Pugh
By David John, Richard Moody, David Rolls
By Philip Coggan
By Fareed Zakaria
By Yascha Mounk
By Ismail K. White, Chryl N. Laird
By David Runciman
By Clive Harber, Vusi Mncube
By Daniele Archibugi
By Judith M. Green
By Christopher Blattman
By Jack Lively
By Jon Sopel
By Bronwyn Hayward
By Onora O'Neill (Newnham College, Cambridge)
By Cass R. Sunstein
By Sophia Rosenfeld
By Dennis Altman
By Ian Buruma