The Wealth of Nations by Part 2 Chapter 2 Page 42

know, peculiar to them, and have, perhaps, been the principal cause, both of the great trade of those companies and of the benefit which the country has received from it.

Whoever has a credit of this kind with one of those companies, and borrows a thousand pounds upon it, for example, may repay this sum piecemeal, by twenty and thirty pounds at a time, the company discounting a proportionable part of the interest of the great sum from the day on which each of those small sums is paid in till the whole be in this manner repaid. All merchants, therefore, and almost all men of business, find it convenient to keep such cash accounts with them, and are thereby interested to promote the trade of those companies, by readily receiving their notes in all payments, and by encouraging all those with whom they have any influence to do