All else equal, a decrease in the level of imports allowed into the United States ________ the demand for goods and service produced in the United States

A natural monopoly is defined as

A) a market in which competition and entry are restricted by the granting of a government license. B) an industry in which economies of scale allow one firm to supply the entire market at the lowest possible cost. C) a market in which competition and entry are restricted by the granting of a patent. D) any market where one firm constitutes the entire industry.

Which of the following will increase aggregate expenditure in the United States?

A) an increase in the price level B) an increase in the value of the dollar C) an increase in interest rates D) an increase in government purchases