David Ricardo：On the Principles of Political Economy and Taxation, Excerpt 54

It often, and indeed commonly happens that before No. 2, 3, 4, or 5, or the inferior lands are cultivated, capital can be employed more productively on those lands which are already in cultivation. It may perhaps be found, that by doubling the original capital employed on No. 1, though the produce will not be doubled, will not be increased by 100 quarters, it may be increased by eighty-five quarters, and that this quantity exceeds what could be obtained by employing the same capital on land, No. 3.

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Locator：Excerpt 54 · Verified：2026-10-19 · Verification：Short excerpt

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