Friedrich Engels
John Stuart Mill
Charlotte Perkins Gilman
David Ricardo
Charles Babbage
Thorstein Veblen
Frédéric Bastiat
John Bates Clark
John Ruskin
Adam Smith
David Hume
Xenophon
George Berkeley
Daniel Defoe
George Bernard Shaw and others
Hilaire Belloc
W. H. Mallock
Pierre-Joseph Proudhon
Wendell Berge
Karl Marx
Frank A. Fetter
