'The diagram quoted', he says, 'was to prove conclusively a postulate which, though simple enough, might easily give rise to objections, unless the process be adequately understood--the postulate, namely, that capitalist production creates a market for itself. So long as it is possible to expand social production, if the productive forces are adequate for this purpose, the proportionate division of social production must also bring about a corresponding expansion of the demand inasmuch as under such conditions all newly produced goods represent a newly created purchasing power for the acquisition of other goods. Comparing simple reproduction of the social capital with its reproduction on a rising scale, we arrive at the most important conclusion that in capitalist economy the demand for commodities is in a sense independent of the total volume of social consumption. Absurd as it may seem to "common-sense", it is yet possible that the volume of social consumption as a whole goes down while at the same time the aggregate social demand for commodities grows.'[317] And again further on: 'Arising from the abstract analysis of the reproductive process of social capital we have formed the conclusion that nothing will be left over of the social product in view of the proportionate division of the social capital.'[318] Accordingly Tugan Baranovski subjects Marx's theory of crises to a revision which he claims to have developed from Sismondi's 'over-consumption'. 'Marx is in substantial agreement with the general view that the poverty of the workers, i.e. of the great majority of the population, makes it impossible to realise the products of an ever expanding capitalist production, since it causes a decline in demand. This opinion is definitely mistaken. We have seen that capitalist production creates its own market--consumption being only one of the moments of capitalist production. In a planned social production if the leaders of production were equipped with all _information_ about the demand and with the _power_ to transfer labour and capital freely from one branch of production to another, then, however low the level of social consumption, the supply of commodities would not exceed the demand.'[319] The only circumstance which periodically causes the market to be flooded is a lack of proportion in the enlargement of production. On this assumption, therefore, Tugan Baranovski describes the course of capitalist accumulation as follows: 'What would the workers ... produce if production were organised on proportionate lines? Obviously their own means of subsistence and production. With what object? To expand production in the second year. The production of what products? Again of means of production and subsistence for the workers--and so on _ad infinitum_.'[320]