Why floating exchange rates fall: A reconsideration of the liquidity trap

In the international capital market, interest rates would seem to be natural shock absorbers for balancing currency risk associated with expected inflation or differential taxation. Under a floating exchange rate, however, short-term interest rates in each national money market behave as if caught in a liquidity trap. The problem arises because the domains for national monetary circulation remain somewhat disjoint even though the bond market is fully integrated internationally. The national rate of interest is ncapable of equilibriating the domestic money market on the one hand and the international bond market on the other. The result is excessively high exchange-rate volatility that distorts the flow of international commodity trade and causes cycles of inflation and deflation in open economies.