The Wealth of Nations by Part 2 Chapter 5 Page 7

safely be trusted to their discretion. It can never hurt either the consumer or the producer; on the contrary, it must tend to make the retailers both sell cheaper and buy dearer than if the whole trade was monopolized by one or two persons. Some of them, perhaps, may sometimes decoy a weak customer to buy what he has no occasion for. This evil, however, is of too little importance to deserve the public attention, nor would it necessarily be prevented by restricting their numbers. It is not the multitude of ale-houses, to give the most suspicious example, that occasions a general disposition to drunkenness among the common people; but that disposition arising from other causes necessarily gives employment to a multitude of ale-houses.

The persons whose capitals are employed in any of those four ways are themselves