of the seller into that of the buyer. As soon as the term of the contract expires, money enters circulation, since it changes its position by passing from the hands of the former buyer into those of the former seller. But it does not enter circulation as a circulating medium or as a means of purchase. It performed those functions before it was present and it appears after it has ceased to perform them. It now enters circulation as the only adequate equivalent of the commodity, as the absolute form of existence of exchange value, as the last word of the process of exchange, in short as money, and money in its distinct role of a universal means of payment. In this capacity of a means of payment money appears as the absolute commodity, but within the sphere of circulation and not without it as was the case with hoards. The difference between the means of purchase and the means of payment makes itself unpleasantly felt in periods of commercial crises.[1]
Originally, the conversion of the product into money in the sphere of circulation appears only as an individual necessity for the commodity owner in so far as his own product has no use-value to him, but has to acquire it first by being alienated. But in order to pay at the expiration of the contract, he must have sold commodities before that. Thus, entirely apart from his individual wants, the movement of the circulation process makes selling a social necessity with every owner of commodities. As a former
- ↑ The difference between the means of purchase and the means of payment is emphasized by Luther.
