By Stephen Castles, Alastair Davidson
By Adrian Favell
By David M. Goldenberg
By Professor Abdul Raufu Mustapha, Raufu Mustapha, Dr Hannah Hoechner, Judith-Ann Walker
By Robin Law
By Brenda Cooper, Andrew Steyn
By Chouki El Hamel (Arizona State University)
By M. Adamu, A. H. M. Kirk Greene
By Efraim Karsh, Inari Karsh
By Glenford Deroy Howe
By Shamit Saggar (Professor of Political Science, University of Sussex; Visiting Professor of Public Policy, University of Toronto; Senior Associate, Demos; Senior Fellow, 21st Century Trust)
By Susan S. Williams
By Seymour Drescher (Professor of History, Professor of History, University of Pittsburgh), Stanley L. Engerman (Munro Professor of Economics, Munro Professor of Economics, University of Rochester)
By Walvin, James
By Pier M. Larson
By Paul Collier
By Jonathon Glassman
By Maurice Bloch
By David Haslam, Rt. Revd. David Sheppard
By Pat Caplan
By Edward John Thompson
By Suraj Milind Yengde, Cornel West
By D. Hulme
By Sven Lindqvist
By Wilber A. Chaffee, Gary Prevost
By Ledio Cakaj, Romeo Dallaire
By John Spencer
By Linda M. Heywood (Howard University, Washington DC)
By Eva-Maria Bruchhaus, Monika M. Sommer
By Michael A. Gomez (New York University)