Scotland Bill

Are not the economies of England, Scotland and the rest of the UK so closely integrated and dependent on each other that the consequences would not be the same as might be the case for, say, Germany and France? On the hon. Gentleman's point about Standard Life, I am not normally someone who tries to air scare tactics about what might happen to the financial services sector under independence, but would there not be a danger that some companies, faced with the choices and difficulties that he has outlined, might choose to move their headquarters out of Scotland precisely because of the consequences of a differential in corporation tax rates?