3. Second Comer - Rent Begins
The next comer has to be content with the three-tree section. (This now becomes the margin of production.) On this land, three bushels are the reward for one day's labor.
These two people do the same work, yet one gets four bushels and the other only three. Why? Because of the difference in the land. Since the best land is superior by one bushel, its rent is one. Wages are three on both lands.