____ is a doctrine that holds that exports are good for a country, whereas imports are harmful

Which one of the following statements is NOT correct?

A) Unemployment can occur even when an economy is growing. B) The line between frictional and structural unemployment is sometimes hard to draw. C) The natural rate of unemployment is estimated to be between 5 percent and 6.5 percent in the U.S. D) The term "full employment" means that 100 percent of the labor force is employed.

Portfolio investment means the

A) purchase of less than 20 percent of the shares of ownership in a company in another country. B) purchase of less than 50 percent of the shares of ownership in a company in another country. C) purchase of less than 80 percent of the shares of ownership in a company in another country. D) purchase of less than 10 percent of the shares of ownership in a company in another country.