Final answer:
Productive efficiency means it is impossible to produce more of one good without decreasing the quantity of another. Choices on the PPF are productive efficiency, while choices inside are wasteful.
Step-by-step explanation:
Productive efficiency means that, given the available inputs and technology, it is impossible to produce more of one good without decreasing the quantity that is produced of another good.
All choices on the Production Possibilities Frontier (PPF) display productive efficiency. As a firm moves from any one of these choices to any other, either one good increases and the other decreases or vice versa.
Choices inside the PPF are productively inefficient because it is possible to produce more of one good, the other good, or some combination of both goods.