The chancellor's Autumn Statement is as political and obscure as we might expect. A bit of spending here and a bit of cutting there. A tilt at the rich and corporations which, except for the change to stamp duty, won’t do much. The ‘banding’ of stamp duty is a kind of mansion tax which in principle would be desirable, if it didn't mean that the government has yet another reason to ration housing. (More houses means cheaper houses, which means a lower return on stamp duty.)