But wait! Even under the sway of capitalism, society does not consist exclusively of capitalists and wage labourers. Apart from these two classes, there are a host of other people: the landowners, the salaried employees, the liberal professions such as doctors, lawyers, artists and scientists. Moreover, there is the Church and its servants, the Clergy, and finally the State with its officials and armed forces. All these strata of the population can be counted, strictly speaking, neither among the capitalist nor among the working class. Yet society has to feed and support them. Perhaps it is they, these strata apart from the capitalists and wage labourers, who call forth enlarged reproduction by their demand. But this seeming solution cannot stand up to a closer scrutiny. The landowners must as consumers of rent, i.e. of part of the surplus value, quite obviously be numbered among the capitalist class; since we are here concerned with the surplus value in its undivided, primary form, their consumption is already allowed for in the consumption of the capitalist class. The liberal professions in most cases obtain their money, i.e. the assignment to part of the social product, directly or indirectly from the capitalist class who pay them with bits of their own surplus value. And the same applies to the Clergy, with the difference only that its members also obtain their purchasing power in part from the workers, i.e. from wages. The upkeep of the State, lastly, with its officers and armed forces is borne by the rates and taxes, which are in their turn levied upon either the surplus value or the wages. Within the limits of Marx’s diagram there are in fact only the two sources of income in a society: the labourers’ wages and the surplus value. All the strata of the population we have mentioned as apart from the capitalists and the workers, are thus to be taken only for joint consumers of these two kinds of income. Marx himself rejects any suggestion that these ‘third persons’ are more than a subterfuge:

‘All members of society not directly engaged in reproduction, with or without labour, can obtain their share of the annual produce of commodities—in other words, their articles of consumption ... only out of the hands of those classes who are the first to handle the product, that is to say, productive labourers, industrial capitalists, and real estate owners. To that extent their revenues are substantially derived from wages (of the productive labourers), profit and ground rent, and appear as indirect derivations when compared to these primary sources of revenue. But, on the other hand, the recipients of these revenues, thus indirectly derived, draw them by grace of their social functions, for instance that of a king, priest, professor, prostitute, soldier, etc., and they may regard these functions as the primary sources of their revenue.’[107]

And about the consumers of interest and ground rent as buyers, Marx says: ‘Now, if that portion of the surplus-value of commodities, which the industrial capitalist yields in the form of ground rent or interest to other shareholders in the surplus-value, cannot be in the long run converted into money by the sale of the commodities, then there is an end to the payment of rent and interest, and the landowners or recipients of interest can no longer serve in the role of miraculous interlopers, who convert aliquot portions of the annual reproduction into money by spending their revenue. The same is true of the expenditure of all so-called unproductive labourers, State officials, physicians, lawyers, etc., and others who serve economists as an excuse for explaining inexplicable things, in the role of the ‘general public’.[108]

Seeing that we cannot discover within capitalist society any buyers whatever for the commodities in which the accumulated part of the surplus value is embodied, only one thing is left: foreign trade. But there are a great many objections to a method that conceives of foreign trade as a convenient dumping ground for commodities which cannot be found any proper place in the reproductive process. Recourse to foreign trade really begs the question: the difficulties implicit in the analysis are simply shifted—quite unresolved—from one country to another. Yet if the analysis of the reproductive process actually intends not any single capitalist country but the capitalist world market, there can be no foreign trade: all countries are ‘home’. This point is made by Marx already in the first volume of Capital, in connection with accumulation:

‘We here take no account of export trade, by means of which a nation can change articles of luxury either into means of production or means of subsistence, and vice versa. In order to examine the object of our investigation in its integrity, free from all disturbing subsidiary circumstances, we must treat the whole world as one nation and assume that capitalist production is everywhere established and has possessed itself of every branch of industry.’[109]

The same difficulty presents itself if we consider the matter from yet another aspect. In Marx’s diagram of accumulation we assumed that the portion of the social surplus value intended for accumulation exists from the first in a natural form which demands it to be used for capitalisation.

‘In one word, surplus-value is convertible into capital solely because the surplus-product, whose value it is, already comprises the material elements of new capital.’[110]

In the figures of our diagram:

I.5,000c+1,000v+1,000s=7,000means of production
II.1,430c+285v+285s=2,000means of consumption

Here, a surplus value of 570s can be capitalised because from the very outset it consists in means of production. To this quantity of producer goods there correspond besides additional consumer goods to the amount of 114s so that 684s can be capitalised in all. But the process here assumed of simply transferring means of production to constant capital on the one hand, consumer goods to variable capital on the other, in commensurate quantities, is in contradiction with the very structure of capitalist commodity production. Whatever natural form the surplus value may have, there can be no immediate transfer to the place of production for the purpose of accumulation. It must first be realised, it must be turned into hard cash.[111]