as reckless as Tugan Baranovski, and rejoice as much in paradoxical statements, to assume that this untiring merry-go-round in thin air could be a faithful reflection in theory of capitalist reality, a true deduction from Marx's doctrine.[339] Besides the analysis of enlarged reproduction roughed out in _Capital_, volume ii, the whole of Marx's work, volume ii in particular, contains a most elaborate and lucid exposition of his general views regarding the typical course of capitalist accumulation. If we once fully understand this interpretation, the deficiencies of the diagram at the end of volume ii are immediately evident. If we examine critically the diagram of enlarged reproduction in the light of Marx's theory, we find various contradictions between the two. To begin with, the diagram completely disregards the increasing productivity of labour. For it assumes that the composition of capital is the same in every year, that is to say, the technical basis of the productive process is not affected by accumulation. This procedure would be quite permissible in itself in order to simplify the analysis, but when we come to examine the concrete conditions for the realisation of the aggregate product, and for reproduction, then at least we must take into account, and make allowance for, changes in technique which are bound up with the process of capital accumulation. Yet if we allow for improved productivity of labour, the material aggregate of the social product--both producer and consumer goods--will in consequence show a much more rapid increase in volume than is set forth in the diagram. This increase in the aggregate of use-values, moreover, indicates also a change in the value relationships. As Marx argues so convincingly, basing his whole theory on this axiom, the progressive development of labour productivity reacts on both the composition of accumulating capital and the rate of surplus value so that they cannot remain constant under conditions of increasing accumulation of capital, as was assumed by the diagram. Rather, if accumulation continues, _c_, the constant capital of both departments, must increase not only absolutely but also relatively to _v + c_ or the total new value (the social aspect of labour productivity); at the same time, constant capital and similarly the surplus value must increase relatively to the variable capital--in short, the rate of surplus value, i.e. the ratio between surplus value and variable capital, must similarly increase (the capitalist aspect of labour productivity). These changes need not, of course, occur annually, just as the terms of first, second and third year in Marx's diagram do not necessarily refer to calendar years but may stand for any given period. Finally, we may choose to assume that these alterations, both in the composition of capital and in the rate of surplus value, take place either in the first, third, fifth, seventh year, etc., or in the second, sixth and ninth year, etc.