Geoffrey Shuetrim
Published: 2003
Total Pages: 0
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This paper uses a simple model of the Australian economy to empirically examine the consequences of parameter uncertainty for optimal monetary policy. Optimal policy responses are derived for a monetary authority that targets inflation and output stability. Parameter uncertainty is characterised by the estimated distribution of the model coefficient estimates. Learning is ruled out, so the monetary authority can commit to its ex ante policy response. For certain shocks, taking account of parameter uncertainty can recommend more, rather than less, activist use of the policy instrument. While this finding is specific to the model specification, parameter estimates and the shocks analysed, it contrasts with the widely held belief that the generic implication of parameter uncertainty is a more conservative policy.