Discussion paper Series 1 / Volkswirtschaftliches Forschungszentrum der Deutschen Bundesbank 2000,03
In this paper we present a critical overview of differnt methods of constructing an equilibrium exchange rate. The recent literature on purchasing power parity (PPP) indicates that on its own PPP is not a good vehicle for defining an equilibrium exchange rate. Rather, we argue that the latter can only be recover from a model in which the real determinants of exchange rates are explicitly modelled. The advantages and disadvantages of various such models are discussed. In particular, the internal-external balance approach to defining an equilibrium real exchange rate is disccused, and this method is compared to the so-called behavioural equilibrium approach. Finally, an approach which uses purely time series methods to construct an equilibrium exchange rate is also discussed.
Equilibrium Exchange Rates Purchasing Power Parity Real Exchange Rate Models