Treasurer wants policy to be driven by models that can’t beat a random walk

On Monday (January 7, 2012) – The culpability lies elsewhere … always! – I wrote about the unacceptably large forecasting errors from the IMF derived from models that informed their input into bailout packages etc, which in turn set the fiscal austerity agenda and as resulted in millions becoming unemployed. I was interviewed about this today by the ABC National Radio program – the World Today – and told the journalist that if errors of this size occurred in medicine, the practitioner would be jailed for professional negligence. A summarised transcript from the World Today programme is available here – Eurozone jobless rate hits record high. A few snippets from a 10 minute interview! I did another interview today about a paper that came out recently from the RBA, which largely admitted its forecasting record was inferior to what we might have gained from assuming a random walk (unemployment) or simple historical averages (real GDP growth). You have to see this incompetence not in terms of some technical boffins waxing lyrical in a research paper about a range of technical measures of their errors but rather, in terms of the damage that the policy that has been informed by these errors. Today we received more evidence of that damage in the form of the ABS publication – Job Vacancies, Australia (November 2011). The evidence is clear. Our economy is faltering because policy settings have been wrong. They have been wrong because the policy setting paradigm is wrong and this has led to the use of models which deliver predictions that cannot be sustained given the underlying dynamics of the monetary system that this ideology chooses to ignore.

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