The prospect of an abundance of this kind, may to some perhaps appear to justify still greater efforts to prevent the introduction of foreign corn; and to secure our agriculture from too sudden a shock, it may be necessary to give it some protection. But if, under such circumstances with regard to the price of corn in Europe, we were to endeavour to retain the prices of the last five years, it is scarcely possible to suppose that our foreign commerce would not in a short time begin to languish. The difference between ninety shillings a quarter and thirty two shillings a quarter, which is said to be the price of the best wheat in France, is almost too great for our capital and machinery to contend with. The wages of labour in this country, though they have not risen in proportion to the price of corn, have been beyond all doubt considerably influenced by it.
If the whole of the difference in the expense of raising corn in this country and in the corn countries of Europe was occasioned by taxation, and the precise amount of that taxation as affecting corn, could be clearly ascertained; the simple and obvious way of restoring things to their natural level and enabling us to grow corn, as in a state of perfect freedom, would be to lay precisely the same amount of tax on imported corn and grant the same amount in a bounty upon exportation. Dr Smith observes, that when the necessities of a state have obliged it to lay a tax upon a home commodity, a duty of equal amount upon the same kind of commodity when imported from abroad, only tends to restore the level of industry which had necessarily been disturbed by the tax.
But the fact is that the whole difference of price does not by any means arise solely from taxation. A part of it, and I should think, no inconsiderable part, is occasioned by the necessity of yearly cultivating and improving more poor land, to provide for the demands of an increasing population; which land must of course require more labour and dressing, and expense of all kinds in its cultivation. The growing price of corn therefore, independently of all taxation, is probably higher than in the rest of Europe; and this circumstance not only increases the sacrifice that must be made for an independent supply, but enhances the difficulty of framing a legislative provision to secure it.
When the former very high duties upon the importation of foreign grain were imposed, accompanied by the grant of a bounty, the growing price of corn in this country was not higher than in the rest of Europe; and the stimulus given to agriculture by these laws aided by other favourable circumstances occasioned so redundant a growth, that the average price of corn was not affected by the prices of importation. Almost the only sacrifice made in this case was the small rise of price occasioned by the bounty on its first establishment, which, after it had increased operated as a stimulus to cultivation, terminated in a period of cheapness.