Suppose the Chinese government regulates the price of food and forbids firms from setting a higher price. In this case the government is setting a

Which of the following four-firm concentration ratios would be the best indicator of an oligopoly?

A) 0.25 percent B) 31 percent C) 78 percent D) 100 percent E) 11 percent

Which of the following result from a change in the money supply brought about by an open market purchase?

A) lower interest rate, higher exchange rate, decreased demand for investment and net exports B) higher interest rate, higher exchange rate, increased demand for investment and decreased demand for net exports C) lower interest rate, lower exchange rate, increased demand for investment and net exports D) higher interest rate, lower exchange rate, decreased demand for investment and increased demand for net exports