I here explain what is meant by money stagnated, and by money realized. Money, while it is employed in circulation, can carry no interest; the moment it lies idle to one man, were it but for a day, it may be worth interest to another, who willingly pays for the use of it, when he has occasion either to buy what he wants, or to pay what he owes. If no body be found who wants it, then it is said to stagnate in the hands of the proprietors. This denotes that circulation is full. He therefore desires to realize it; that is, to purchase with it some kind of income. For this purpose, if it be coin, he sends it to some place where coin is wanted. If it be paper, he demands of the debtor in the paper either to give him an interest for it, or to convert it into coin, which is the money of the world. Both are called realizing; and in proportion as money is realized, circulation diminishes.

Hence I conclude, that as the use of circulating money is to carry on alienation, so the use of stagnated money is to produce an interest; consequently, a perpetual interest is better than money, when it is not wanted for the use of circulation. If therefore, by the policy of a country, the capital of every perpetual interest can be immediately converted into money for the use of circulation, the inconvenience of capitals not demandable is removed; because although you cannot make the debtor pay, you can sell what he owes you to another, who will; and this equally suits your convenience.

Chap. III. The simplicity of manners among the primitive christians, circumscribing very much the uses for money in circulation, a great quantity of the coin was consequently locked up. Paper money then was superfluous; because even coin itself so far exceeded all the uses of their circulation, that it was considered in the light of jewels and plate with us.

Taking interest for it, when lent, appeared to them as unreasonable, as if a lady, in these times, were to ask a price for lending her jewels to a friend.

However, as money was necessary on many occasions to those who had none locked up, the Jews, who have always despised land-property, made a trade of lending; and this drew an odium upon the practice. I can ascribe it to no other cause. Our manners are totally changed; and Christians lend money at interest as well as Jews. Neither trade, industry, or credit, can subsist without it; and as money cannot be lent, without allowing interest to be taken, interest is become the basis of the whole system of credit, and comes to be examined in the following chapters.

Chap. IV. Before industry was established, the calls for money to borrow were few, and chiefly confined to Princes in time of war, and prodigal proprietors of land in time of peace. Their demands were urgent, and the interest they paid was in proportion. The lenders possessed but a small part of the coin of the country; because the bulk of the people locked up all they could. Those who hoarded, would not lend; and this greatly diminished the fund of borrowing: besides, Princes and prodigals had no sooner spent the money borrowed, than it fell again into the hands of those who hoarded; and the lenders found, no doubt, great difficulties in procuring fresh supplies.

When industry and trade brought money out of its repositories, when the necessity of permitting interest appeared evident to the church, the coin then began to make its appearance, and was ready to be lent. This opened a market for money. The price of money is the rate of interest. At this market, the borrowers and lenders appear in competition among themselves, according to circumstances. If more money is demanded to be borrowed than is offered to be lent, the competition takes place among the borrowers, and interest rises. If more is offered to be lent than is demanded to be borrowed, interest falls. Those who borrow money may be divided into two classes, viz. those who intend to spend it, and those who intend to trade with it.

When more money is to be lent than the first class demands, the rate of interest will be regulated by what merchants can give for it: when there is less, it will rise to what the prodigals will give for it.

But this first class must have good credit, or their borrowing will be cut off. When therefore a statesman finds, that the borrowing of such people hurts the commercial interest of his country, by keeping interest high, he should weaken their credit, by tying up their lands by entails. When their borrowing becomes necessary for the encouragement of industry, and for bringing all the money there is into circulation, then their credit should be enlarged, by promoting an expeditious sale of every branch of their property.

Chap. V. Thus, without the aid of law, the interest of money is regulated by demand. But a state must not totally overlook the interest of the class who spend more than their incomes. It would be inhuman to throw them into the jaws of usurers. Statutes therefore prevent interest from rising above a certain rate. This preserves them, and renders the dissipation of their fortunes more gradual.