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Politics and government of
the European UnionIn economics, a monetary union is a situation where several countries have agreed to share a single currency amongst themselves. The European Economic and Monetary Union (EMU) consists of three stages coordinating economic policy and culminating with the adoption of the euro, the EU's single currency. All member states of the European Union are expected to participate in the EMU. Fifteen member states of the European Union have entered the third stage and have adopted the euro as their currency. The United Kingdom, Denmark and Sweden have not accepted the third stage and the three EU members still use their own currency today.
Under the Copenhagen criteria, it is a condition of entry for states acceding to the EU that they be able to fulfil the requirements for monetary union within a given period of time. The 10 new countries that acceded to the European Union in 2004 all intend to join third stage of the EMU in the next ten years, though the precise timing depends on various economic factors. Similarly, those countries who are currently negotiating for entry will also take the euro as their currency in the years following their accession. (See Enlargement of the European Union.) On the 1st of January 2008 Cyprus and Malta joined the EMU.
Prior to adopting the euro, a member state has to have its currency in the European Exchange Rate Mechanism (ERM II) for two years. Denmark, Estonia, Latvia, Lithuania, and Slovakia are the current participants in the exchange rate mechanism.