As to the second point: it is self-evident that part of the social labour and means of production which must be annually expended for the production or purchase of money in order to replace worn-off coin is pro tanto a diminution of the volume of social production. But as for the money-value which functions partly as a medium of circulation, partly as a hoard, it is simply there, acquired, present alongside the labour-power, the produced means of production, and the natural sources of wealth. It cannot be regarded as a limit set to these things. By its transformation into elements of production, by its exchange with other nations, the scale of production might be extended. This presupposes, however, that money plays its role of world-money the same as ever.
To set the productive capital in motion requires more or less money-capital, depending on the length of the period of turnover. We have also seen that the division of the period of turnover into working time and circulation time requires an increase of the capital latent or suspended in the form of money.
Inasmuch as the period of turnover is determined by the length of the working period, it is determined, other conditions remaining equal, by the material nature of the process of production, hence not by the specific social character of this process of production. However, on the basis of capitalist production, more extensive operations of comparatively long duration necessitate large advances of money-capital for a rather long time. Production in such spheres depends therefore on the magnitude of the money-capital which the individual capitalist has at his disposal.
This barrier is broken down by the credit system and the associations connected with it, e.g., the stock companies. Disturbances in the money-market therefore put such establishments out of business, while these same establishments, in their turn, produce disturbances in the money-market.
On the basis of socialised production the scale must be ascertained on which those operations -- which withdraw labour-power and means of production for a long time without supplying any product as a useful effect in the interim -- can be carried on without injuring branches of production which not only withdraw labour-power and means of production continually, or several times a year, but also supply means of subsistence and of production.
Under socialised as well as capitalist production, the labourers in branches of business with shorter working periods will as before withdraw products only for a short time without giving any products in return; while branches of business with long working periods continually withdraw products for a longer time before they return anything. This circumstance, then, arises from the material character of the particular labour-process, not from its social form. In the case of socialised production the money-capital is eliminated. Society distributes labour-power and means of production to the different branches of production. The producers may, for all it matters, receive paper vouchers entitling them to withdraw from the social supplies of consumer goods a quantity corresponding to their labour-time.
These vouchers are not money. They do not circulate.
We see that inasmuch as the need for money-capital originates in the length of the working period, it is conditioned by two things: First, that money in general is the form in which every individual capital (apart from credit) must make its appearance in order to transform itself into productive capital; this follows from the nature of capitalist production and commodity-production in general. Second, the magnitude of the required money advance is due to the circumstance that labour-power and means of production are continually withdrawn from society for a comparatively long time without any return to it, during that period, of products convertible into money. The first condition, that the capital to be advanced must be advanced in the form of money, is not eliminated by the form of this money itself, whether it is metal-money, credit-money, token-money, etc. The second condition is in no way affected by what money-medium or in what form of production labour, means of subsistence, and means of production are withdrawn without the return of some equivalent to the circulation.