Book excerpt: The upcoming enlargement of the European Monetary Union involves the selection of appropriate reference rates at which the exchange rates of the accession countries will be fixed against the euro in order to avoid economic distortions as consequences of serious exchange rate misalignments. Determination of an exchange rate that is neither undervalued nor overvalued raises the issue of equilibrium exchange rates. Based on time series as well as panel estimation techniques three different concepts - BEER, PEER and PPP - are applied in this study to calculate equilibrium exchange rate levels for ten Central and Eastern European countries. The results indicate significant real misalignments in a number of accession countries.