By Jill Mourdaunt, Rob Paton
By Ian Cunningham, Graham Dawes
By Cliff Oswick, David Grant
By Lynne Pepall, Dan Richards, George Norman
By Ian Jacques
By Peter Hawkins
By Paul C. Nutt
By Manfred F. R. Kets de Vries
By Dawson, Sandra
By M.F. Drummond
By Mancur Olson
By Scott Gordon
By Reeves Wiedeman
By A. Agrawal, Joshua Gans, Avi Goldfarb
By Steven Kotler
By Richard N. Bolles, Katharine Brooks, Edd
By Michael Edwards
By Graham Donnelly
By Carolyn Blackman
By Frank Honigsbaum, John Richards, Chris Ham
By J.L. Gattorna, D W Walters
By Anonyme
By Francis M. Deng
By Donnan P. Baron, John Connor
By Allan G. Hill
By Mark Kurlansky
By Gill Shepherd, Overseas Development Institute
By Colin J. Ewen (Rijksuniversiteit Leiden, The Netherlands), Harry van der Hulst (Rijksuniversiteit Leiden