David Ricardo：On the Principles of Political Economy and Taxation, Excerpt 194

Having in a former part of this work established, I hope satisfactorily, the principle, that the price of corn is regulated by the cost of its production on that land exclusively, or rather with that capital exclusively, which pays no rent, it will follow that whatever may increase the cost of production will increase the price; whatever may reduce it, will lower the price. The necessity of cultivating poorer land, or of obtaining a less return with a given additional capital on land already in cultivation, will inevitably raise the exchangeable value of raw produce. The discovery of machinery, which will enable the cultivator to obtain his corn at a less cost of production, will necessarily lower its exchangeable value. Any tax which may be imposed on the cultivator, whether in the shape of land-tax, tithes, or a tax on the produce when obtained, will increase the cost of production, and will therefore raise the price of raw produce.

Source： https://www.gutenberg.org/ebooks/33310
Locator：Excerpt 194 · Verified：2026-10-19 · Verification：Short excerpt

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