Britain must move closer to the EU to flourish, new parliamentary report claims

Simon Tilford, deputy director of the Centre for European Reform, was even more cautious about Britain leaving the EU. He said: "There is no doubt that a Britain on the outside of the EU would elicit a lot of resentment within the eurozone."

..."If London continued to be the financial centre of the eurozone, that would be seen as a big problem."

..."Britain within the EU but not in the euro is not a problem — if we stay in the EU but resist getting involved in further integration with the eurozone, that is fine — but I think that, if we were to leave, the City would over time be vulnerable to regulatory attacks et cetera."