The Social Security tax is a tax on

If labor productivity increases

A) labor costs rise by equal increments. B) the demand for labor increases. C) some workers will be laid off. D) jobs will relocate.

Every transaction concerning the importation of goods into the United States constitutes a

A) supply of foreign currency with no effect on the market for the dollar. B) demand for dollars with no effect on markets for foreign currencies. C) supply of foreign currencies and a demand for dollars. D) demand for foreign currencies and a supply of dollars.