[327] _Die Neue Zeit_, vol. xx, part 2, _Krisentheorien_, p. 116. Kautsky's mathematical demonstration to Tugan Baranovski that consumption is bound to grow, and 'in the precise ratio as the bulk of producer goods in terms of value', calls for two comments: first, like Marx, Kautsky paid no attention to the progress in the productivity of labour so that consumption appears to have a relatively larger volume than it would in fact have. Secondly, the increase in consumption to which Kautsky here refers is only a consequence, a result of enlarged reproduction, it is neither its basis nor its aim; it is mainly due to the growth of the variable capital, the continual employment of additional workers. The upkeep of these workers, however, neither is nor ought to be the object of the expansion of reproduction--no more, for that matter, than the increasing personal consumption of the capitalist class. Kautsky's argument no doubt refutes Tugan Baranovski's pet notion: the whimsy to construe enlarged reproduction with an absolute decrease in consumption. But for all that, he does not get anywhere near the fundamental problem, the relations between production and consumption under the aspect of the reproductive process, though we are told in another passage of the same work: 'With the capitalists growing richer, and the workers they exploit increasing in numbers, they constitute between them a market for the consumer goods produced by capitalist big industry which expands continually, yet it does not grow as rapidly as the accumulation of capital and the productivity of labour, and must therefore remain inadequate.' An additional market is required for these consumer goods, a market outside their own province, among those occupational groups and nations whose mode of production is not yet capitalistic. This market is found and also widens increasingly, but the expansion is again too slow, since the additional market is not nearly so elastic and capable of expansion as the capitalist productive process. As soon as capitalist production has developed to the big industry stage, as in England already in the first quarter of the nineteenth century, it is capable of expanding by leaps and bounds so as soon to out-distance all expansions of the market. Every period of prosperity subsequent to a considerable extension of the market is thus from the outset doomed to an early end--the inevitable crisis. This, in brief, is the theory of crises established by Marx, and, as far as we can see, generally accepted by the "orthodox" Marxists' (ibid., p. 80). Kautsky, however, is not interested in harmonising this conception of the realisation of the aggregate product with Marx's diagram of enlarged reproduction, perhaps because, as our quotation also shows, he deals with the problem solely from the aspect of crises, regarding, in other words, the social product as a more or less homogeneous bulk of goods and ignoring the fact that it is differentiated in the reproductive