I thought it was proven that 35pc tax rate was far more valuable to the Government than 40/45/50pc?
Nope it wasn't proven at all. I read a great book recently and this subject came up. The tories even know it was crap but it suited the headline.
An excellent book by the Economist Noreena Hertz. All the information was there they just chose to ignore it. All that happened was before the rate change to 50p people exercised the right to pay tax early. So the year before the figures where inflated as people got in before the rate change and the year after the figures where artificially low.
They then clung to this as a headline grabber despite knowing the real reasons behind the stats.