David Ricardo：On the Principles of Political Economy and Taxation, Excerpt 53

When land of the third quality is taken into cultivation, rent immediately commences on the second, and it is regulated as before, by the difference in their productive powers. At the same time, the rent of the first quality will rise, for that must always be above the rent of the second, by the difference between the produce which they yield with a given quantity of capital and labour. With every step in the progress of population, which shall oblige a country to have recourse to land of a worse quality, to enable it to raise its supply of food, rent, on all the more fertile land, will rise.

Source： https://www.gutenberg.org/ebooks/33310
Locator：Excerpt 53 · Verified：2026-10-19 · Verification：Short excerpt

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