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Finance Bill

I am grateful to the hon. Gentleman for determining the precise point at which the giving way takes place. It is always a joy—a titillating delight, no less—to listen to him. However, although obviously he is central to his own world, he is not necessarily central to the world. Further to the inquiry made by my hon. Friend the Member for Windsor (Adam Afriyie), can the hon. Gentleman extrapolate beyond his example and say what evidence he has that what he is advancing, which is perfectly valid in theory, is true in practice? What is the additional spend in cafeterias, bookshops and so on in the examples that he is describing?