若是overshooting的话
出现overshooting的
if the money supply increase were permanent. the expection rate of return will keep going up and leads a greater depreciation. greater depreciation shift the expected return of other currencies to left, then it cause a overshooting on exchange rate. the new equilibruim on the foreign exchange rate will go higher.(in short run)一切会回复正常在发行的货币彻底融入市场之后 因为real interest or real GDP is unchanged
相反的 如果money supply increase were temporary的话 就没有overshooting