Barter is a system of exchange in which people directly trade one good for another, without using money as an intermediate step.

Refer to the figure above. In equilibrium, ________

A) Firm 1 will follow Strategy Y, and Firm 2 will follow Strategy X B) Firm 1 will follow Strategy X, and Firm 2 will follow Strategy Y C) both firms will follow Strategy X D) both firms will follow Strategy Y

All of the following would cause the aggregate demand curve to shift EXCEPT

A) a rise in real interest rates. B) an increase in taxes. C) improvements in economic conditions in other countries. D) a decrease in the price level.