chapter  VIII
10 Pages

Prices and the Ratio of Exchange

But so far as the composition of prices is concerned, no distinction can be made between the necessary costs in the narrower sense and the surplus elements. As we have seen, the latter enter into price equally with ~he former, the price of units of land use equally with the price of units of unskilled labour, though the latter contains no C surplus,' while the former is entirely surplus. The fact that in the one case painful human effort is involved, while in the other Nature gives out her free energy, makes no difference as regards the constitution of the'price of the goods into which these payments enter.