The Wealth of Nations by Part 4 Chapter 5 Page 76

as soon as possible for some other. The farmer, therefore, who was thus forced to exercise the trade of a corn merchant, could not afford to sell his corn cheaper than any other corn merchant would have been obliged to do in the case of a free competition.

The dealer who can employ his whole stock in one single branch of business has an advantage of the same kind with the workman who can employ his whole labour in one single operation.

As the latter acquires a dexterity which enables him, with the same two hands, to perform a much greater quantity of work; so the former acquires so easy and ready a method of transacting his business, of buying and disposing of his goods, that with the same capital he can transact a much greater quantity of business. As the one can commonly afford his