ABSTRACT
When we turn, however, to the relevant statistics to find some exact measure of the degree of these fluctuations, we find that they are few and unsatisfactory. There is no single set of figures which measures accurately what should be capable of quite precise measurement -namely, the rate at which the community is adding to its investment in fixed capital. The best we can do, therefore, is to take a number of partial indicators and to judge as well as we can from their combined results (J.M.Keynes (1930), A Treatise on Money,voI.II, The Royal Economic Society, 1971, p. 87).
