David Ricardo：On the Principles of Political Economy and Taxation, Excerpt 346

"Whether a coal mine, for example," he says, "can afford any rent, depends partly upon its fertility, and partly upon its situation. A mine of any kind may be said to be either fertile or barren, according as the quantity of mineral which can brought from it by a certain quantity of labour, is greater or less than what can be brought by an equal quantity from the greater part of other mines of the same kind. Some coal mines, advantageously situated, cannot be wrought on account of their barrenness. The produce does not pay the expense. They can afford neither profit nor rent. There are some, of which the produce is barely sufficient to pay the labour, and replace, together with its ordinary profits, the stock employed in working them. They afford some profit to the undertaker of the work, but no rent to the landlord. They can be wrought advantageously by nobody but the landlord, who being himself the undertaker of the work, gets the ordinary profit of the capital which he employs in it. Many coal mines in Scotland are wrought in this manner, and can be wrought in no other. The landlord will allow nobody else to work them without paying some rent, and nobody can afford to pay any.

Source： https://www.gutenberg.org/ebooks/33310
Locator：Excerpt 346 · Verified：2026-10-19 · Verification：Short excerpt

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