投资 · 西方古典
大卫·李嘉图:政治经济学及赋税原理·摘录 54
大卫·李嘉图《政治经济学及赋税原理》· On the Principles of Political Economy and Taxation · 投资
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.
出处:
https://www.gutenberg.org/ebooks/33310
定位:Excerpt 54 · 核对日期:2026-10-19 · 核验:短摘录
白话
常常在耕种第二、三、四、五等劣等地之前,对已耕种土地追加资本会更有效。比如在第一等地上把原始资本翻倍,产量虽不翻倍,可能只增加85夸特,但仍超过用同样资本耕种第三等地所得。核心是:集约耕作可能优于粗放扩张。做法是:决定开垦新地还是追加投资时,比较边际产量,别盲目扩张。
上下文
李嘉图讨论集约与粗放耕作的取舍,说明资本积累可能先于劣等地耕种。
今日一问
你面对扩张还是深耕的选择时,是否比较过两者的边际回报?
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