This parting shot, by the way, is particularly noteworthy in that Marx here expressly repudiates the attempt to explain realisation of the surplus value, even in the case of simple reproduction, by means of a hoard formed for the periodical renewal of fixed capital. Later on, with a view to realising the surplus value under the much more difficult conditions of accumulation, he makes more than one tentative effort to substantiate an explanation of this type which he himself dismissed as a ‘plausible subterfuge’.

Then follows a solution which has a somewhat disconcerting ring: ‘The general reply has already been given: When a mass of commodities valued at x times 1,000 p.st. has to circulate, it changes absolutely nothing in the quantity of the money required for this circulation, whether this mass of commodities contains any surplus-value or not, and whether this mass of commodities has been produced capitalistically or not. In other words, the problem itself does not exist. All other conditions being given, such as velocity of circulation of money, etc., a definite sum of money is required in order to circulate the value of commodities worth x times 1,000 p.st., quite independently of the fact how much or how little of this value falls to the share of the direct producers of these commodities. So far as any problem exists here, it coincides with the general problem: Where does all the money required for the circulation of the commodities of a certain country come from?’[137]

The argument is quite sound. The answer to the general question about the origin of the money for putting a certain quantity of commodities into circulation within a country will also tell us where the money for circulating the surplus value comes from. The division of the bulk of value contained in these commodities into constant and variable capital, and surplus value, does not exist from the angle of the circulation of money—in this connection, it is quite meaningless. But it is only from the angle of the circulation of money, or of a simple commodity circulation, that the problem has no existence. Under the aspect of social reproduction as a whole, it is very real indeed; but it should not, of course, be put in that misleading form that brings us back to simple commodity circulation, where it has no meaning. We should not ask, accordingly: Where does the money required for realising the surplus value come from? but: Where are the consumers for this surplus value? It is they, for sure, who must have this money in hand in order to throw it into circulation. Thus, Marx himself, although he just now denied the problem to exist, keeps coming back to it time and again:

‘Now, there are only two points of departure: The capitalist and the labourer. All third classes of persons must either receive money for their services from these two classes, or, to the extent that they receive it without any equivalent services, they are joint owners of the surplus-value in the form of rent, interest, etc. The fact that the surplus-value does not all stay in the pocket of the industrial capitalist, but must be shared by him with other persons, has nothing to do with the present question. The question is: How does he maintain his surplus-value, not, how does he divide the money later after he has secured it? For the present case, the capitalist may as well be regarded as the sole owner of his surplus-value. As for the labourer it has already been said that he is but the secondary point of departure, while the capitalist is the primary starting point of the money thrown by the labourer into circulation. The money first advanced as variable capital is going through its second circulation, when the labourer spends it for the payment of means of subsistence.

‘The capitalist class, then, remains the sole point of departure of the circulation of money. If they need 400 p.st. for the payment of means of production, and 100 p.st. for the payment of labour-power, they throw 500 p.st. into circulation. But the surplus-value incorporated in the product, with a rate of surplus-value of 100 per cent, is equal to the value of 100 p.st. How can they continually draw 600 p.st. out of circulation, when they continually throw only 500 p.st. into it? From nothing comes nothing. The capitalist class as a whole cannot draw out of circulation what was not previously in it.’[138]

Marx further explodes another device which might conceivably be thought adequate to the problem, i.e. a more rapid turnover of money enabling a larger amount of value to circulate by means of a smaller amount of money. The dodge will not work, of course, since the velocity of money in circulation is already taken into account by equating the aggregate bulk of commodities with a certain number of pounds sterling. But then at last we seem in sight of a proper solution:

‘Indeed, paradoxical as it may appear at first sight, it is the capitalist class itself that throws the money into circulation which serves for the realisation of the surplus-value incorporated in the commodities. But, mark well, it is not thrown into circulation as advanced money, not as capital. The capitalist class spends it for their individual consumption. The money is not advanced by them, although they are the point of departure of its circulation.’[139]

This lucid and comprehensive account is the best evidence that the problem is not just imaginary but very real. It provides a solution, not by disclosing a new ‘source of money’ for the realisation of the surplus value, but by pointing out at last the consumers of this surplus value. We are still, on Marx’s assumption, within the bounds of simple reproduction; the capitalist class, that is to say, use the whole of their surplus value for personal consumption. Since the capitalists are the consumers of surplus value, it is not so much a paradox as a truism that they must, in the nature of things, possess the money for appropriating the objects of consumption, the natural form of this surplus value. The circulatory transaction of exchange is the necessary consequence of the fact that the individual capitalist cannot immediately consume his individual surplus value, and accordingly the individual surplus product, as could, for instance, the employer of slave labour. As a rule the natural material form of the surplus product tends to preclude such use. The aggregate surplus value of the capitalists in general is, however, contained in the total social product—as long as there is simple reproduction—as expressed by a corresponding quantity of consumer goods for the capitalist class, just as the sum total of variable capital has its corresponding equivalent in the quantity of consumer goods for the working class, and as the constant capital of all individual capitalists taken together is represented by material means of production in an equivalent quantity. In order to exchange the unconsumable individual surplus values for a corresponding amount of consumer goods, a double transaction of commodity exchange is needed: first, the sale of one’s own surplus product and then the purchase of consumer goods out of the surplus product of society. These two transactions can only take place among members of the capitalist class, among individual capitalists, which means that their agent, the money, thereby merely changes hands as between one capitalist and another without ever being alienated from the capitalist class in general. Since simple reproduction inevitably implies the exchange of equivalents, one and the same amount of money can serve year by year for the circulation of the surplus value, and only an excess of zeal will inspire the further query: where does the money which mediates the capitalists’ own consumption come from in the first place? This, question, however, reduces to a more general one: how did money capital initially come into the hands of the capitalists, that money capital of which they always retain a certain part for their personal consumption, apart from what they use for productive investment? Put in this way, however, the question belongs in the chapter of so-called ‘primitive accumulation’, i.e. the historical genesis of capital, going beyond the framework of an analysis of the process of circulation as well as of reproduction.

Thus the fact is clear and unequivocal—so long as we remain within the bounds of simple reproduction. Here the problem is solved by the premises themselves; in fact, the solution is already anticipated by the very concept of simple reproduction which indeed is based on the entire surplus value being consumed by the capitalist class. This implies that it must also be the latter who buy it, that is to say, individual capitalists must buy it from each other.

‘In the present case’, Marx says himself, ‘we had assumed, that the sum of money which the capitalist throws into circulation until the first surplus-value flows back to him, is exactly equal to the surplus-value which he is going to produce and monetise. This is obviously an arbitrary assumption, so far as, the individual capitalist is concerned. But it must be correct when applied to the entire capitalist class, when simple reproduction is assumed. It expresses the same thing that this assumption does, namely, that the entire surplus-value is consumed unproductively, but it only, not any portion of the original capital stock.’[140]