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大卫·李嘉图:政治经济学及赋税原理·摘录 19
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
To convince ourselves that this is the real foundation of exchangeable value, let us suppose any improvement to be made in the means of abridging labour in any one of the various processes through which the raw cotton must pass, before the manufactured stockings come to the market, to be exchanged for other things; and observe the effects which will follow. If fewer men were required to cultivate the raw cotton, or if fewer sailors were employed in navigating, or shipwrights in constructing the ship, in which it was conveyed to us; if fewer hands were employed in raising the buildings and machinery, or if these when raised, were rendered more efficient, the stockings would inevitably fall in value, and consequently command less of other things. They would fall, because a less quantity of labour was necessary to their production, and would therefore exchange for a smaller quantity of those things in which no such abridgment of labour had been made.
出处:
https://www.gutenberg.org/ebooks/33310
定位:Excerpt 19 · 核对日期:2026-10-19 · 核验:短摘录
白话
要理解交换价值的真正基础,可以设想:在生棉花变成袜子上市交换的整个过程中,任何一个环节的劳动被节省下来,比如种棉花的人少了、运棉花的船员或造船匠少了、建厂房造机器的人少了,或者机器效率提高了,那么袜子的价值必然下降,能换到的其他东西也会变少。原因在于生产袜子所需的劳动量减少了,所以它只能换到更少的、那些劳动没有节省的商品。这告诉我们:商品的价值取决于生产它所需的劳动量,劳动节省则价值降低。
上下文
李嘉图在《政治经济学及赋税原理》中阐述劳动价值论,用袜子生产的例子说明价值由劳动量决定。
今日一问
你能否举一个身边商品因生产劳动节省而降价的例子?
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