The unionization rate grew most rapidly in the United States between

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.

Opportunity cost exists because

A) resources in this world are scarce. B) prices must adjust to eliminate shortages. C) production could not occur without the opportunity cost of using resources. D) the value of economic goods is positive while the value of goods is zero.