Since they have to implement the convergence criteria foreseen by the Treaty on the  1/3  European Union in order to ultimately adopt the euro, this has so far led to an impressive record of macroeconomic stability as well as exchange rate stability on their way to EMU.
The firm commitment of the euro system – as the European Central Bank and the 12 National Central Banks from the Member States of the euro area are called – to pursuing price stability as its main objective remains a key factor behind market confidence in the euro as a global and stable currency.