With transaction costs for trading goods, the nominal exchange rate moves within a band around the nominal purchasing power parity (PPP) value. The authors model the behavior of the band and of the exchange rate within the band. The model explains why there are below-unity slope coefficients in...

For the purpose of testing uncovered interest parity (UIP), rates of European currencies against the Mark offer a distinct advantage: the admissible band of the Exchange Rate Mechanism (ERM) induces statistically significant mean-reversion in weekly rates. Thus, unlike for freely floating rates,...