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Optimal Monetary Policy under Risk and Uncertainty


  • D Nocetti


This paper seeks to characterise optimal monetary policy rules in the presence of risk and uncertainty. I explore a situation in which the true parameters and the true structure of the economy are unknown to the policymaker, and he is reluctant to make a decision based on a single distribution estimate (i.e. he faces Knightian uncertainty). I show analytically that if the policymaker does not know the true structure of the economy he will be more cautious than in the case of only parameter risk. Further, I show that Knightian uncertainty can also lead to an extra precautionary motive when one considers its interaction with parameter risk. In a simple exercise, I provide empirical estimates that demonstrate that adjustments due to parameter and structural risk and Knightian uncertainty can potentially be quite large.

Suggested Citation

  • D Nocetti, 2007. "Optimal Monetary Policy under Risk and Uncertainty," Economic Issues Journal Articles, Economic Issues, vol. 12(1), pages 93-108, March.
  • Handle: RePEc:eis:articl:107nocetti

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    Cited by:

    1. P Arestis & A Mihailov, 2009. "Flexible Rules cum Constrained Discretion: A New Consensus in Monetary Policy," Economic Issues Journal Articles, Economic Issues, vol. 14(2), pages 27-54, September.

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