The study of the decisions of individual units in the economy is known as

When firms in monopolistic competition are making an economic profit, firms will

A) enter the industry, and demand will increase for the original firms. B) exit the industry, and demand will increase for the firms that remain. C) exit the industry, and demand will decrease for the firms that remain. D) enter the industry, and demand will decrease for the original firms.

The determinants of macro outcomes include all of the following except

A. Prices. B. Policy levers. C. Internal market forces. D. External shocks.