The Wealth of Nations by Part 5 Chapter 2 Page 113

The former must find it more easy to get back the tax in the price of their goods than the latter. The moderation of the tax, however, renders this inequality of less importance, and it may to many people appear not improper to give some discouragement to the multiplication of little ale-houses. The tax upon shops, it was intended, should be the same upon all shops. It could not well have been otherwise. It would have been impossible to proportion with tolerable exactness the tax upon a shop to the extent of the trade carried on in it without such an inquisition as would have been altogether insupportable in a free country. If the tax had been considerable, it would have oppressed the small, and forced almost the whole retail trade into the hands of the great dealers.

The competition of the former being taken away, the