The UK can be seen as a kind of test case for the proposition that contractionary fiscal policy can induce an economic expansion, a proposition forwarded by most recently Alesina and Ardana (2010) [wp version] (following up earlier work by Alesina and Perroti). So far, admittedly early in the process, the evidence is not consistent with the view of expansionary contraction. Here’s Gavyn Davies’ view:
…The statistics were expected to show a significant slowdown in output growth, but nothing like the drop of 0.5% in real GDP (-2 per cent quarter-on-quarter annualised) which was actually announced this morning. …