Exchange Rate Mechanism

Divergence Indicator
A measure of how far the exchange rates of currencies of members of the Exchange Rate Mechanism (ERM) of the European Monetary System (EMS) diverged from their agreed central parities with the European Currency Unit (ECU).
Exchange Rate Bands
Limits to variations in exchange rates when a country commits itself to hold the exchange rate between its own currency and some foreign currency or currencies within a limited band.
Narrow-Band ERM
Understanding the narrow-band framework within the Exchange Rate Mechanism (ERM) of the European Monetary System.