Monetary Policy Regime Shifts and Uncovered Interest Parity Revisited: The Euro–US Dollar Exchange Rate

To explore possible sources of the well-documented uncovered interest parity (UIP) violation in the foreign exchange market, this paper scrutinizes structural changes in monetary reactions to inflationary pressure in the conventional approaches to nominal exchange rate and examines how this small but important change has an effect on the empirical implications of the UIP condition. In addition to some salient features found in the euro exchange rate, by introducing occasional monetary policy regime shifts into an otherwise standard open-economy dynamic general equilibrium model, we found some important findings that potentially help better understand exchange rate dynamics. During the entire sample period, 1999:M1–2014:M8, exchange rate disconnect puzzle still exists. However, sub-sample analysis suggests that relatively passive monetary reaction implying less frequent intervention by monetary authority tends to be more consistent with the UIP relation. Simulation results support the empirical regularities.