Thank you, Mr Deputy Speaker. One always feels ashamed not to answer a question directly, so I apologise to the hon. Lady for the fact that I shall have to give a later answer on that knotty point of value added tax.
I will stick with the Laffer curve and its history of increased revenue. We heard from the Opposition that when rates went down, the economy boomed and so, therefore, did the revenues raised. There are two answers to that. One reason that the economy boomed was that there was lower tax, so people had more of their own money in their pockets to spend on goods and services,
leading to overall economic growth. Secondly, the amount paid by top taxpayers grew much faster than the rate of the economy overall. We are now in a situation where 27% of income tax is now paid by the top 1% of income tax payers—