The independent Office for Budget Responsibility (OBR) had handed the new chancellor a draft forecast of the economic outlook on her first day in office, that might have effectively limited the ambition of the mini-budget. It had also offered to supply a forecast to accompany the mini-budget, showing its impact on the UK economy. Both of these moves were rejected.
Bafflingly, Ms Truss's advisers believed that by eschewing the forecasts, the markets would simply ignore the massive £45bn unfunded nature of her tax cuts. Instead it put a target sign on British assets. Downing Street was trying to mess with the controls of the British economy, at a delicate time in global markets.
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