The Wealth of Nations by Part 4 Chapter 5 Page 9

than he could otherwise expect in the actual state of tillage, it tends, they suppose, to encourage tillage.

This double encouragement must, they imagine, in a long period of years, occasion such an increase in the production of corn as may lower its price in the home market much more than the bounty can raise it, in the actual state which tillage may, at the end of that period, happen to be in.

I answer, that whatever extension of the foreign market can be occasioned by the bounty must, in every particular year, be altogether at the expense of the home market; as every bushel of corn which is exported by means of the bounty, and which would not have been exported without the bounty, would have remained in the home market to increase the consumption and to lower the price of that