________ is the study of an economy as a whole

In the long run, in monopolistic competition

A) a firm's price equals its marginal cost. B) firms make an economic profit. C) firms make zero economic profit. D) Both answers A and C are correct.

According to Gordon, the three main ingredients in the recent U.S. housing bubble are

A) low interest rates, saving glut, and financial innovation. B) high interest rates, lack of savings, and financial innovation. C) financial innovation, expansionary fiscal policy, and capital outflow. D) capital outflow, budget deficit, and trade deficit.