1. E. R. Walker, From Economic Theory to Policy (University of Chicago Press: 1943), p. 72.
2. Cited by R. F. Harrod, The Life of John Maynard Keynes (London: 1951), P. 436.
3. Keynes, Economic Journal (June—September 1943), pp. 183 and 185, quoted by Lord Kahn in ‘On Re-reading Keynes’, Proceedings of the British Academy, Vol. LX (1974), p. 379.