I am glad to see that he is not, but I know that several members of the SDP are interested in the tax credit system, starting with the hon. Member for Farnworth (Mr. Roper). However, it is a line of action that I would strongly oppose, and the hon. Member for Colne Valley seems to be implying that he would oppose it as well.

As my hon. Friend the Member for Birkenhead said, the reduced rate band involves a small amount of money. We are suggesting a level of 25 per cent. on £750. My hon. Friend sees this as the beginning of a series of ranges of reduced rate bands. Before going too far in that direction, I should like to see the results of the computerisation of the Inland Revenue, to see how far one can have such refinement of the tax system. In principle, I see nothing to disagree with in what my hon. Friend said. He is showing the road ahead, if that can be done within the principles of the system that is being carried out by the Inland Revenue in its computerisation exercise.