As in some other major industrial nations with floating exchange rate regimes, in the United States there is considerable scope for the play of market forces in determining the dollar exchange rate. But also, as in other countries,U.S. authorities do take steps at times to influence the exchange rate, via policy measures and direct intervention in the foreign exchange market to buy or sell foreign currencies. As noted above, in practice, all foreign exchange market intervention of the U.S. authorities is routinely sterilized–that is, the initial effect on U.S. bank reserves is offset by monetary policy action.
No one questions that monetary policy measures can influence the exchange rate by affecting the relative attractiveness of a currency and expectations of its prospects, although it is difficult to find a stable and significant relationship that would yield a predictable, precise response.… Read the rest