The marginal productivity theory is irrelevant to organizing production in a socialist society.

If 100 Japanese yen buy more U.S. dollars today than yesterday, the dollar has ________ and the yen has ________

A) depreciated; appreciated B) appreciated; depreciated C) depreciated; depreciated D) appreciated; appreciated

Real GDP

A) fluctuates from year to year but is always below potential GDP. B) fluctuates around potential GDP. C) grows at a constant 3 to 4 percent per year. D) can be called potential GDP when it is adjusted for price changes.