Since 1983, the US has typically run a financial account surplus

The opportunity cost of any factor of production is

A) its accounting cost. B) the benefit forgone by not using it in its worst alternative. C) the money actually paid to the factors of production. D) its explicit cost. E) the benefit forgone by not using it in its best alternative.

One "problem" with applying the Jorgenson theory of investment to project investment is that

A) the MPK is known with certainty by business executives but the user cost is uncertain. B) the MPK is known with uncertainty by business executives but the user cost is certain. C) both user cost and the MPK are uncertain. D) it does not explain the accelerator.