Firms pay efficiency wages because these wages:

In the foreign exchange market, the demand for dollars decreases and the demand curve shifts leftward if the

A) U.S. interest rate differential increases. B) U.S. exchange rate falls. C) U.S. interest rate differential decreases. D) U.S. exchange rate rises. E) expected future exchange rate rises.

The yen is considered to be stronger if:

A) it takes fewer yen to acquire a foreign currency such as a dollar B) it takes more yen to acquire a foreign currency such as a dollar C) it takes fewer dollars to acquire a yen D) it takes fewer dollars and fewer euros to acquire a yen