Not so fast.  If I double the productivity of my farmland, I increase the rent on my land (but typically I have to invest in it to get that, so it&#x27;s not <i>just</i> rent in the economic sense of the word).  But if everybody doubles the productivity of their farmland, the price of wheat falls through the floor, and the landowner may be even worse off than before, while consumers get a windfall.