The Scottish Parliament will have a significant ability to adjust the zero rate in particular. I hope that the Secretary of State responds to that point, because the House of Commons Library was quite clear on it. However, there has to be some pooling and sharing. Income tax is the biggest tax that everyone pays. Everyone who works pays a proportion of their income in income tax, above the basic allowance. It is important that everyone has a stake in that game. We could get to a situation in which people who did not
have a stake in that game asked what the United Kingdom was for. I fundamentally believe in pooling and sharing, and the Smith agreement struck a reasonable balance.
We need a full analysis of how all the proposals will work. That is why we tabled new clause 32. Some adjustment of the powers might be needed in the future. We do not yet know what effect the implementation of the Scotland Act 2012 will have, because it does not come into force until 2016. The question that the hon. Member for Gainsborough raises relates to what we are trying to achieve with new clause 32, because the report would examine the consequences of this transfer of powers.