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大卫·李嘉图:政治经济学及赋税原理·摘录 282

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

Raw produce is not at a monopoly price, because the market price of barley and wheat is as much regulated by their cost of production, as the market price of cloth and linen. The only difference is this, that one portion of the capital employed in agriculture regulates the price of corn, namely, that portion which pays no rent; whereas, in the production of manufactured commodities, every portion of capital is employed with the same results; and as no portion pays rent, every portion is equally a regulator of price: corn, and other raw produce, can be augmented too in quantity, by the employment of more capital on the land, and therefore they are not at a monopoly price. There is competition among the sellers, as well as amongst the buyers. This is not the case in the production of those rare wines, and those valuable specimens of art, of which we have been speaking; their quantity cannot be increased, and their price is limited only by the extent of the power and will of the purchasers. The rent of these vineyards may be raised beyond any moderately assignable limits, because no other land being able to produce such wines, none can be brought into competition with them.

出处: https://www.gutenberg.org/ebooks/33310
定位:Excerpt 282 · 核对日期:2026-10-19 · 核验:短摘录

白话

农产品不是垄断价格,因为其市场价格受生产成本调节,与工业品一样。区别在于:农业中不支付地租的资本调节价格,而工业中所有资本都调节价格;农产品可通过增加资本投入来增产,所以有卖方竞争。而稀有葡萄酒和艺术品数量无法增加,价格只受购买者意愿限制,地租可无限提高。核心是:农产品价格由成本决定,垄断品价格由需求决定。

上下文

李嘉图比较农产品与垄断商品的价格决定机制。

今日一问

如何区分市场中的竞争性价格与垄断性价格?

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