The possibility that not all member states would participate in economic and monetary union from the outset was, of course, made explicit in the Treaty on European Union.
The United Kingdom Government has indicated that the question of whether the UK will participate in economic and monetary union, economic and monetary union, from 1 January 1999 will not be decided until closer to that date. It has not indicated that the UK will never enter economic and monetary union, nor even that it will not enter in 1999.
It is relevant that the Treaty sets out a framework for the co-ordination of member states' economic policies to help ensure stability within the European Union as a whole. Under the Treaty, member states, whether participating in economic and monetary union or not, are obliged to regard their economic policies as a matter of common concern and to co-ordinate them within the Council. In particular, they are obliged to treat their exchange rate policies as a matter of common interest.
The implementation of these obligations was clarified by the agreement at the Dublin European Council on a new Exchange Rate Mechanism, and on the stability and growth pact, which inter alia includes provision for more effective monitoring of the budgetary and economic performance of member states, whether participating in economic and monetary union or not. The Council and the Commission are considering further the methods for the effective surveillance of exchange rate developments. The arrangements being put in place will help foster price and exchange rate stability. In the context of Ireland joining economic and monetary union where the UK remainded outside, they offer the prospect of helping to promote orderly exchange rate relations between the euro and sterling.