The progressive side of politics is at the best of times, fragmented. The conservatives are much more organised and fund various “think tanks” very generously. These think tanks then provide the arguments upon which the conservative attack on government intervention is justified. Various multilateral agencies – such as the IMF and the OECD – are co-opted into this conservative putsch. But occasionally there is some major piece of work that is hailed as the progressive manifesto. A 2011 offering – Crisis, Slump, Superstition and Recovery: Thinking and acting beyond vulgar Keynesianism – is now being held out as a model for British Labour to follow. However on closer examination it becomes obvious that this offering is another one of cases when friendly fire shoots the progressive movement in the foot. You can read the previous editions of this theme – When you’ve got friends like this – to see what the problem is. The simple point is that a truly progressive social agenda has to be grounded in solid macroeconomic principles. Trying to carve out a progressive agenda within a mainstream macroeconomic framework undermines the credibility of the former and plays straight into the hands of the conservatives.