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大卫·李嘉图：政治经济学及赋税原理·摘录 136
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
In all these calculations I have been desirous only to elucidate the principle, and it is scarcely necessary to observe, that my whole basis is assumed at random, and merely for the purpose of exemplification. The results though different in degree, would have been the same in principle, however accurately I might have set out in stating the difference in the number of labourers necessary to obtain the successive quantities of corn required by an increasing population, the quantity consumed by the labourer's family, &c. &c. My object has been to simplify the subject, and I have therefore made no allowance for the increasing price of the other necessaries, besides food, of the labourer; an increase which would be the consequence of the increased value of the raw material from which they are made, and which would of course further increase wages, and lower profits.
出处：
https://www.gutenberg.org/ebooks/33310
定位：Excerpt 136 · 核对日期：2026-10-19 · 核验：短摘录
白话
李嘉图说明：这些数字只是随意假设，为阐明原理，不必精确。结果在程度上不同，但原理一样。他故意简化，没算其他必需品涨价（由原材料涨价引起），那会进一步推高工资、压低利润。核心：理论模型重在揭示趋势，不必纠结具体数字；现实更复杂，但方向不变：必需品涨价→工资涨→利润降。
上下文
李嘉图在《政治经济学及赋税原理》中解释其数字例子的假设性质，强调原理重于具体数值。
今日一问
你分析问题时，是否也能分清核心原理与假设细节？
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