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Flexible exchange rates and foreign macroeconomic policy. Consider an open econo

ID: 1205536 • Letter: F

Question

Flexible exchange rates and foreign macroeconomic policy. Consider an open economy with flexible exchange rates. Let UIP stand for the uncovered interest parity condition. In an IS - LM- UIP diagram, show the effect of an increase in foreign output, Y^*, on domestic output, Y. Explain in words. In an IS - LM - UIP diagram, show the effect of an increase in the foreign interest rate, i^*, on domestic output, Y. Explain in words. Given the discussion of the effects of fiscal policy in this chapter, what effect is a foreign fiscal expansion likely to have on foreign output, Y*, and on the foreign interest rate, i*? Given the discussion of the effects of monetary policy in this chapter, what effect is a foreign monetary expansion likely to have on Y* and i*? Given your answers to parts (a), (b), and (c), how does a foreign fiscal expansion affect domestic output? How does a foreign monetary expansion affect domestic output?

Explanation / Answer

a.   The IS curve shifts right, because net exports tend to increase. Domestic output increases.

b. The IS curve shifts right, because the increase in i* tends to create a depreciation of the domestic currency and therefore an increase in net exports. Domestic output increases. The interest parity line also shifts up.

c.   A foreign fiscal expansion is likely to increase Y* and to increase i*.

A foreign monetary expansion is likely to increase Y* and to reduce i*

d.   A foreign fiscal expansion is likely to increase home output.

A foreign monetary expansion has an ambiguous effect on home output. The increase in Y* tends to increase home output, but the fall in i* tends to reduce home output.