The Wealth of Nations by Part 1 Chapter 11 Page 38

The difference is greater or less according as the fashionableness and scarcity of the wine render the competition of the buyers more or less eager. Whatever it be, the greater part of it goes to the rent of the landlord. For though such vineyards are in general more carefully cultivated than most others, the high price of the wine seems to be not so much the effect as the cause of this careful cultivation. In so valuable a produce the loss occasioned by negligence is so great as to force even the most careless to attention. A small part of this high price, therefore, is sufficient to pay the wages of the extraordinary labour bestowed upon their cultivation, and the profits of the extraordinary stock which puts that labour into motion.

The sugar colonies possessed by the European nations in the West Indies may be compared