The second event was the bounty upon the exportation of corn, granted in 1688. The bounty, it has been thought by many people, by encouraging tillage, may, in a long course of years, have occasioned a greater abundance, and, consequently, a greater cheapness of corn in the home market, than what would otherwise have taken place there. How far the bounty could produce this effect at any time I shall examine hereafter: I shall only observe at present, that between 1688 and 1700, it had not time to produce any such effect. During this short period, its only effect must have been, by encouraging the exportation of the surplus produce of every year, and thereby hindering the abundance of one year from compensating the scarcity of another, to raise the price in the home market. The scarcity which prevailed in England, from 1693 to 1699, both inclusive, though no doubt principally owing to the badness of the seasons, and, therefore, extending through a considerable part of Europe, must have been somewhat enhanced by the bounty. In 1699, accordingly, the further exportation of corn was prohibited for nine months.
There was a third event which occurred in the course of the same period, and which, though it could not occasion any scarcity of corn, nor, perhaps, any augmentation in the real quantity of silver which was usually paid for it, must necessarily have occasioned some augmentation in the nominal sum. This event was the great debasement of the silver coin, by clipping and wearing. This evil had begun in the reign of Charles II. and had gone on continually increasing till 1695; at which time, as we may learn from Mr Lowndes, the current silver coin was, at an average, near five-and-twenty per cent. below its standard value. But the nominal sum which constitutes the market price of every commodity is necessarily regulated, not so much by the quantity of silver, which, according to the standard, ought to be contained in it, as by that which, it is found by experience, actually is contained in it. This nominal sum, therefore, is necessarily higher when the coin is much debased by clipping and wearing, than when near to its standard value.