A firm will hire additional units of any input up to the point where
a. the marginal productivity of the input is maximized.
b. the marginal cost of employing the input is minimized.
c. the expense of employing the last unit is equal to the revenue brought in by the last unit.
d. the revenue brought in by the input is maximized.
c
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Which of the following is NOT true concerning a society's production possibilities frontier (PPF)?
A) It reveals the maximum amount of any two goods that can be produced from a given quantity of resources. B) Tradeoffs occur when moving along a PPF. C) Production efficiency occurs when production is on the frontier itself. D) Consumers will receive equal benefits from the two goods illustrated in the PPF.
Suppose the U.S. government encouraged new medical school graduates to take over existing practices from doctors wishing to retire by paying both the new and retiring doctors $100,000. These doctors would be exemplifying the economic idea that
A) people are rational. B) people respond to economic incentives. C) optimal decisions are made at the margin. D) equity is more important than efficiency.