According to the assumptions of our example, one-ninth less of the total advanced capital is needed as a result of the contraction of the period of circulation, so that the total capital is reduced from £900to £800 and £100 of money-capital is eliminated.
Business X supplies, just as before, the same six weeks' product of the same value of £600, and as work continues year in year out without interruption, it supplies in 51 weeks the same quantity of products, valued at £5,100. There is, then, no change so far as the quantity and price of the product thrown into circulation by this business are concerned, nor in the times when it throws its product on the market. But £100are eliminated because due to the contraction of the circulation period the requirements of the process are satisfied with only £800 instead of the former £900. The £100 eliminated capital exist in the form of money-capital. But they do not by any means represent that portion of the advanced capital which would have to function constantly in the form of money-capital. Let us assume that 4/5, or £480, of the advanced circulating capital I of £600 are constantly invested in productive materials and 1/5, or £120, in wages. Then the weekly investment in materials of production would be £80 and in wages £20. Capital II, amounting to £300, should then also be divided into 4/5, or £240, for materials of production and 1/5, or £60, for wages. The capital invested in wages must always be advanced in the form of money. As soon as the commodity-product, worth £600, has been reconverted into the money-form, or sold, £480 of it can be transformed into materials of production (productive supply), but £120 retain their money-form in order to serve for the payment of wages for six weeks. These £120are the minimum of the returning capital of £600 which must always be renewed and replaced in the form of money-capital and therefore must always be kept on hand as that portion of the advanced capital which functions in the form of money.
Now, if £100 of the £300 periodically released for three weeks, and likewise divisible into £240 for productive supply and £60 for wages, is entirely eliminated, completely thrust out of the turnover mechanism, in the form of money-capital by shortening the circulation time, where does the money for this money-capital of £100come from? Only one-fifth of this amount consists of money- capital periodically set free within the turnovers. But four-fifths, or £80, are already replaced by an additional productive supply of the same value. In what manner is this additional productive supply converted into money, and where does the money for this conversion come from?
If the abridged period of circulation has become a fact, then only £400 of the above £600, instead of £480, are reconverted into productive supply. The remainder, £80, is retained in its money-form and constitutes, together with the above £20 for wages, the £100of eliminated capital. Although these £100 come from the sphere of circulation through the sale of the £600 worth of commodity-capital and are now withdrawn from it by not being reinvested in wages and elements of production, it must not be forgotten that, being in the money-form, they are once more in that form in which they were originally thrown into circulation. In the beginning £900 were invested in productive supply and wages. Now only £800 are necessary to carry out the same productive process. The £100 thus released in money now form a new, employment-seeking money-capital, a new constituent part of the money-market. True, they have already previously been periodically in the form of released money-capital and of additional productive capital, but these latent states were themselves the requisites for the execution of the process of production, because they were the requisites for its continuity. Now they are no longer needed for that purpose and for this reason form new money-capital and a constituent part of the money-market, although they by no means form either an additional element of the available social money-supply (for they existed at the beginning of the business and were thrown by it into the circulation), or a newly accumulated hoard.
These £100 are now in actual fact withdrawn from circulation inasmuch as they are a part of the advanced money-capital that is no longer employed in the same business. But this withdrawal is possible only because the conversion of the commodity-capital into money, and of this money into productive capital, C'---M---C, is accelerated by one week, so that the circulation of the money operating in this process is likewise hastened.
They have been withdrawn from it because they are no longer needed for the turnover of capital X.
It has been assumed here that the advanced capital belongs to him who employs it. Had he borrowed it nothing would be changed. With the shortening of the time of circulation he would have to borrow only £800instead of £900. The £100, if returned to the lender, would as before form £100 of new money-capital, only in the hands of Yinstead of X. should capitalist X receive £480 worth of materials of production on credit, so that he has to advance only £210 in money for wages out of his own pocket, he would now have to procure £80worth of materials less on credit and this sum would constitute superfluous commodity-capital for the capitalist granting the credit, while capitalist X would have eliminated £20 in money.
The additional supply for production is now reduced by one-third.