Abstract
The adoption of the single Euro currency by twelve countries is an unprecedented event in the history of The European Union. In fact the loss of its own currency as a symbol of sovereignty and the giving up of the pursuit of an independent economic and budgetary policy represents a major change. After the introduction of the Euro in 2002, one cannot judge the efficiency of this single currency within a short period of time. Moreover it seems that there are three countries which are not ready to give up their currencies in the favor of the Euro .
