This chapter charts changing character of the economic ideas informing fiscal policymaking in Britain, and Fund responses to them. Drawing on interviews with the Fund’s UK Missions and UK authorities, it shows how, despite the IMF’s prizing of its non-political, scientific image, its differing views of UK policy space and prioritization became the stuff of a contested politics. The central assumption of the coalition government’s construction of fiscal rectitude was that Britain faced a ‘crisis of debt’, yet the IMF did not share this view. Fund work on fiscal multipliers being higher during recessions, and the adverse effects of fiscal consolidation on growth, all had pointed relevance for UK policy. The coalition government saw little potential for activist fiscal policy in support of growth. In 2013 Blanchard accused the UK authorities of ‘playing with fire’ by pursuing excessively harsh austerity which threatened a prolonged and deep recession.
