The coalition is, I am sure, united at the highest level, but that does not mean that Back Benchers do not sometimes disagree. My hon. Friend the Member for Bristol West (Stephen Williams) and I often discuss these matters, and we do not invariably agree on every aspect of them. The Lib Dems have their own particular policies, which they will no doubt put forward in an election campaign, but the coalition at large is committed to a single policy.
I want to come back to the amendment, which is about getting back to the 50p rate. We already have a situation in which the top 1% of taxpayers pay nearly 28% of the total income tax receipts—that is, £50 billion. If the rate of tax is put up to too high a level, people will change their behaviour to alter the amount of tax they pay. That is very straightforward, and they can do a number of things. Some people leave the country, so that their tax is paid overseas. Some work less hard, reducing their earnings to reduce their tax payments.
Some use pension funds or legitimate forms of tax avoidance to minimise their income. That is all perfectly well known by those on the Opposition Front Bench, who are a fine and intelligent group of people, yet they try to make political points on the argument about fairness. Fairness seems to me to be about doing what is right.