David Ricardo：On the Principles of Political Economy and Taxation, Excerpt 121

It has been already remarked, that if the labour of ten men will, on land of a certain quality, obtain 180 quarters of wheat, and its value be 4_l._ per quarter, or 720_l._; and if the labour of ten additional men, will on the same or any other land, produce only 170 quarters in addition, wheat would rise from 4_l._ to 4_l._ 4_s._ 8_d._; for 170: 180:: 4_l._: 4_l._ 4_s._ 8_d._ In other words, as for the production of 170 quarters, the labour of ten men is necessary, in the one case, and only that of 9.44 in the other, the rise would be as 9.44 to 10, or as 4_l._ to 4_l._ 4_s._ 8_d._ In the same manner it might be shewn, that if the labour of ten additional men would only produce 160 quarters, the price would further rise to 4_l._ 10_s._; if 150, to 4_l._ 16_s._, &c. &c.

Source： https://www.gutenberg.org/ebooks/33310
Locator：Excerpt 121 · Verified：2026-10-19 · Verification：Short excerpt

公版作品；原文逐字取自 Project Gutenberg，仅摘录段落并附全书链接。

This text is in the public domain. The edition and source link are above. Copyright

← Back to the library