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in its effects upon labour. Meat, milk, butter, cheese, and potatoes are slowly affected by the price of corn, house-rent, bricks, stone, timber, fuel, soap, candles, and clothing, still more slowly; and, as far as some of them depend, in part or in the whole, upon foreign materials (as is the case with leather, linen, cottons, soap, and candles), they may be considered as independent of it; like the two remaining articles of tea and sugar, which are by no means unimportant in their amount.
It is manifest therefore that the whole of the wages of labour can never rise and fall in proportion to the variations in the price of grain. And that the effect produced by these variations, whatever may be its amount, must be very slow in its operation, is proved by the manner in which the supply of labour takes place; a point, which has been by no means sufficiently attended to.
Every change in the prices of commodities, if left to find their natural level, is occasioned by some change, actual or expected, in the state of the demand or supply. The reason why the consumer pays a tax upon any manufactured commodity, or an advance in the price of any of its component parts, is because, if he cannot or will not pay this advance of price, the commodity will not be supplied in the same quantity as
