Credit cards are not part of the nation's money supply

Rational ignorance means

A) ignorance is rationed. B) the benefit from some information is not worth the cost of collecting it. C) some people do not understand rationality. D) the information is unavailable.

If a German student pays her way to attend Harvard University, her actions will

a. create a supply of dollars and a demand for Euros in the foreign currency market. b. create a supply of Euros and a demand for dollars in the foreign currency market. c. cause the German Euro to appreciate. d. cause the U.S. dollar to depreciate.