Of course, following the launch the spin doctors took over and we eventually found out, through briefings to the media, that one of the central planks of the Scottish Government’s economic policy—one of the central arguments that it has deployed over the past decade—had bitten the dust: namely, the devolution of corporation tax so that the Scottish Government could levy “the most competitive business taxes in Europe”, starting with a cut of 3 per cent lower than anything that Osborne would set.