This book deals with the political philosophy that underpins theories of European integration and develops an understanding of Europeanization based on downloading and up-loading. Downloading is the means by which EU policy is amalgamated with domestic legislation and institutions. Up-loading indicates the use of national governments or sub-national interests in the development of European integration processes. European integration takes place at the supranational level and in general, is distinct from Europeanization. Through a study of financial services regulation these processes are made explicit.