This book relates the development of economic and monetary union in the EC to the development of the single market for financial services. The new edition fully reflects the institutional and legal consequences of the achievement of economic and monetary union in 1999, while taking account also of the continuing flow of Community legislation and case-law in the area of financial services. The transparency resulting from monetary union has shown problems of taxation to be a barrier to market integration, and this is reflected in a new Chapter. On the other hand, this an area in which variable geometry has become a legal reality, and this also is reflected in a new Chapter of the book.