It is remarkable how very slight a modification will suffice to render Mr. Ricardo's doctrine completely true. It is even doubtful whether he himself, if called upon to adapt his expressions to this peculiar case, would not have so explained his doctrine as to render it entirely unobjectionable. It is perfectly true, that, in the example already made use of, a rise of profits takes place, while wages, considered in respect to the quantity of labour of which they are the produce, have not varied at all. But though wages are still the produce of the same _quantity of labour_ as before, the _cost of production_ of wages has nevertheless fallen; for into cost of production there enters another element besides labour. We have already remarked (and the very example out of which the difficulty arose presupposes it) that the cost of production of an article consists generally of two parts,--the _wages_ of the labour employed, and the _profits_ of those who, in any antecedent stage of the production, have advanced any portion of those wages. An article, therefore, may be the produce of the same quantity of labour as before, and yet, if any portion of the profits which the last producer has to make good to previous producers can be economized, the cost of production of the article is diminished. Now, in our example, a diminution of this sort is supposed to have taken place in the cost of production of corn. The production of that article has become less costly, in the ratio of six to five. A quantity of corn, the means of producing which could not previously have been secured but at an expense of 120 quarters, can now be produced by means which 100 quarters are sufficient to purchase. But the labourer is supposed to receive the same quantity of corn as before. He receives one quarter. The cost of production of wages has, therefore, fallen one-sixth. A quarter of corn, which is the remuneration of a single labourer, is indeed the produce of the same quantity of labour as before; but its cost of production is nevertheless diminished. It is now the produce of 10/18 of a man's labour, and nothing else; whereas formerly it required for its production the conjunction of that quantity of labour with an expenditure, in the form of reimbursement of profit, amounting to one-fifth more. If the cost of production of wages had remained the same as before, profits could not have risen. Each labourer received one quarter of corn; but one quarter of corn at that time was the result of the same cost of production, as 1 1/5 quarter now. In order, therefore, that each labourer should receive the same cost of production, each must now receive one quarter of corn, _plus_ one-fifth. The labour of 100 men could not be purchased at this price for less than 120 quarters; and the produce, 180 quarters, would yield only 50 per cent, as first supposed [7].