How bad is it going to get? That was the question that the UK Guardian asked the head of the UK Office for Budget Responsibility in an interview last week. It was in relation to the likely fallout if Greece defaults and leaves the Eurozone. He replied that the UK would be irreparably damaged. The fact is that Greece has already defaulted. The other fact is that if they do leave the EMU (which would be the best strategy) the impact on currency-issuing nations such as Britain can be managed away by sensible fiscal policy. For those who are predicting deep gloom the culprit is not the possible actions of Greece or any Eurozone nation but rather the irresponsible pursuit of austerity among sovereign nations. The reason Britain has a double-dip recession is all down to the decisions its own government have made. Organisations like the OBR support the flawed decisions with poor forecasting. Taken together this malaise reflects a mainstream macroeconomic framework that is incapable of providing policy advice which will deliver sustained prosperity to the population. The same flawed theoretical framework spawns the ever-growing hysteria about what will happen if Greece exits. The mania is reaching proportions similar to those a few years ago when rising budget deficits were predicted to cause huge hikes in interest rates and/or hyperinflation. All these forecasts fail because they are made by those who do not understand how the system works.