Harvesting less wheat than the land is capable of producing is an example of

Which of the following restricts the volume of international trade?

a. stable prices b. tariffs c. the law of comparative advantage d. a stable international monetary system.

Environmental regulation reduces the demand for Pennsylvania coal and the unemployment rate in Pennsylvania increases. This is an example of

A. regulatory unemployment. B. frictional unemployment. C. structural unemployment. D. cyclical unemployment.