1. Consider a world in which prices are sticky in the short-run and perfectly exible in the long-run. APPP may not hold in the short run but does hold in the long-run. The world has two countries, the U.S. and Japan. Both countries are initially in a long-run equilibrium with xed money supplies. a. (20 points) Suppose at time T, real GDP in the United States falls permanently. Draw two diagrams with the money market diagram for the US on the left and the expected return in $/ exchange rate ($/yen) diagram on the right. Label the short-run (impact) effect as point(s) B and the long-run effects as point(s) C