The Eurozone reference article from the English Wikipedia on 24-Apr-2004
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Eurozone

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The Eurozone (also called Euro-area or Euroland) is the set of countries of the European Union which have adopted the Euro (€) currency.

Table of contents
1 Members
2 Inflation
3 Fiscal policy

Members

There are 12 members in the eurozone: Austria, Belgium, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, and Spain.

The other three countries of the European Union are not in the Eurozone: Denmark, Sweden, United Kingdom.

The European Central Bank is responsible for the monetary policy within the eurozone.

Outside the EU (and thus outside the Eurozone) there are in addition:

Inflation

Fiscal policy

Members of the Eurozone have to respect the stability pact and have to keep fiscal deficit below 3% of the
gross domestic product. If they do not do so, they may have to pay fines.

See also: Economic and monetary union, European System of Central Banks