Page:Contribution to the Critique of Political Economy, A - Karl Marx.djvu/140

Rh 40 quarters at 50 shillings. It follows that the quantity of gold required for circulation may fall in spite of a rise in price, if the mass of commodities in circulation declines in a greater ratio than the rise of the combined sum of prices; and, inversely, the quantity of the circulating medium may rise in spite of a decline of the mass of commodities in circulation, if the sum total of prices rises in a greater ratio. Thorough and minute English investigations have demonstrated e. g. that in the early stages of a dearth of grain in England the quantity of money in circulation increases, because the total price of the diminished supply of grain is greater than the former total price of a larger supply of grain, while the circulation of the other commodities continues undisturbed for some time at their old prices. At a later stage of the dearth of grain, there is a decline in the quantity of circulating money, either because less goods are sold at old prices besides grain, or the same quantity of those goods is sold at lower prices.

But, as we have seen, the quantity of money in circulation is determined not only by the sum total of prices of commodities that are to be realized, but also by the rapidity with which money circulates or with which it completes this work of realization. If the same sovereign makes ten purchases a day, each of a commodity having a price of one sovereign, and thus changes hands ten times, it does as much work as would be accomplished by ten sovereigns each performing but a single act of circulation a day. Consequently, rapidity