Uncertainty about the Persistence of Cost-Push Shocks and the Optimal Reaction of the Monetary Authority
AbstractIn this paper we formalize the uncertainty about the persistence of cost-push shocks using an open economy optimal control model with Markov regime-switching and robust control. The latter is used in only one of the regimes producing relatively more persistent cost-push shocks in that regime. Conditional on being in the regime with relatively less persistence, we obtain two main results: a) underestimating the probability of switching to the regime with relatively more persistent cost-push shocks causes higher welfare losses than its overestimation; and b) the welfare losses associated with either underestimation or overestimation of such probability increase with the size of the penalty on inflation deviations from its target. Keywords: Model uncertainty, Robustness, Markov regime-switching, Monetary policy, Inflation targeting.
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Bibliographic InfoPaper provided by Banco de México in its series Working Papers with number 2007-05.
Date of creation: Mar 2007
Date of revision:
Model uncertainty; Robustness; Markov regime-switching; Monetary policy; Inflation targeting;
Find related papers by JEL classification:
- C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
- E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination
This paper has been announced in the following NEP Reports:
- NEP-ALL-2007-06-30 (All new papers)
- NEP-CBA-2007-06-30 (Central Banking)
- NEP-MAC-2007-06-30 (Macroeconomics)
- NEP-MON-2007-06-30 (Monetary Economics)
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