cyrilleemery 5pts You are either in or out of the eurozone ! If you are out there is no reason at all to have a say in euro governance. Financial insitutions from non eurozone countries shall not have any freeride within the eurozone or be given an unfair competitive advantage from lack of regulation in their home country. If UK votes out it is out of whatever will be decided concerning the euro, banking supervision in the eurozone..etc. UK financial companies that want to do business in the eurozone shall comply with whatever legislation is in place in the eurozone otherwise they shall not be accepted!