Scotland Bill

If the hon. Gentleman's argument is correct and reducing corporation tax results in an increased tax yield, that will apply in England and Northern Ireland as much as it will in Scotland. If there are different corporation tax rates in different parts of the United Kingdom and if the hon. Gentleman's argument is correct, surely every part of the United Kingdom will enter into a competition to reduce corporation tax, and we will end up with a race to the bottom to the detriment of all parts of the UK.