Introduction, by K. E. Boulding.--The economic taproot of imperialism, by J. A. Hobson.--Dynamics of imperialism, by P. T. Moon.--On imperialism, by J. A. Schumpeter.--The concept of economic imperialism, by R. Koebner.--Imperialism: an historiographical revision, by D. K. Fieldhouse.--The nature of economic imperialism, by D. S. Landes.--Economic imperialism revisited, by M. Blaug.--Notes on the theory of imperialism, by P. A. Baran and P. M. Sweezy.--The effects of British imperial policy, by R. P. Thomas.--Theory of economic drain: impact of British rule on the Indian economy, 1840-1900, by T. Mukerjee.--Rising demands and insufficient resources, by H. and M. Sprout.--War as an investment: the strange case of Japan, by K. E. Boulding and A. H. Gleason.--Russian imperialism today, by T. P. Whitney.--The mechanism of neo-imperialism, by T. Balogh.--Burdens and benefits of empire: American style, by M. Bronfenbrenner.--Bibliography, by T. Mukerjee (p. 311-327)