If we suppose, that the real price of corn is unchangeable, or not capable of experiencing a relative increase or decrease of value, compared with labour and other commodities, it will follow, that agriculture is at once excluded from the operation of that principle, so beautifully explained and illustrated by Dr Smith, by which capital flows from one employment to another, according to the various and necessarily fluctuating wants of society. It will follow, that the growth of corn has, at all times, and in all countries, proceeded with a uniform unvarying pace, occasioned only by the equable increase of agricultural capital, and can never have been accelerated, or retarded, by variations of demand. It will follow, that if a country happened to be either overstocked or understocked with corn, no motive of interest could exist for withdrawing capital from agriculture, in the one case, or adding to it in the other, and thus restoring the equilibrium between its different kinds of produce. But these consequences, which would incontestably follow from the doctrine, that the price of corn immediately and entirely regulates the prices of labour and of all other commodities, are so directly contrary to all experience, that the doctrine itself cannot possibly be true; and we may be assured, that, whatever influence the price of corn may have upon other commodities, it is neither so immediate nor so complete, as to make this kind of produce an exception to all others. That no such exception exists with regard to corn, is implied in all the general reasonings of the Wealth of nations. Dr Smith evidently felt this; and wherever, in consequence, he does not shift the question from the exchangeable value of corn to its physical properties, he speaks with an unusual want of precision, and qualifies his positions by the expressions much, and in any considerable degree. But it should be recollected, that, with these qualifications, the argument is brought forward expressly for the purpose of showing, that the rise of price, acknowledged to be occasioned by a bounty, on its first establishment, is nominal and not real. Now, what is meant to be distinctly asserted here is, that a rise of price occasioned by a bounty upon the exportation or restrictions upon the importation of corn, cannot be less real than a rise of price to the same amount, occasioned by a course of bad seasons, an increase of population, the rapid progress of commercial wealth, or any other natural cause; and that, if Dr Smith's argument, with its qualifications, be valid for the purpose for which it is advanced, it applies equally to an increased price occasioned by a natural demand.