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What horizon for targeting inflation?

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Abstract

We investigate optimal horizons for targeting inflation in response to different shocks and their properties under alternative preferences of an inflation-targeting central bank. Our analysis is based on a well specified macroeconometric model of Norway, but we examine how alternative specifications of its key equations would affect our results. We find that the optimal horizon is highly shock-specific, precluding general conclusions for demand and supply shocks. An extension of the horizon with concern for output and/or interest rate fluctuations beyond some shock-specific level proves counterproductive. The size of a given shock does not affect the horizon unless the central bank cares about interest rate volatility, while its sign does not matter unless the model is non-linear. The optimal horizon in response to a combination of shocks cannot be derived from those for each of the shocks, as different shocks may amplify or modify the effects of each other. In this case, however, sources of shocks as well as their sizes and signs become relevant, leading to complex dynamics of inflation and output. Successful inflation targeting in such cases may require a complex interest rate response. The optimal horizon generally increases with the degree of persistence in a shock and decreases with the strength of stabilisation mechanisms in the model.
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Suggested Citation

  • Q. Akram, 2010. "What horizon for targeting inflation?," Empirical Economics, Springer, vol. 39(3), pages 675-702, December.
    • Handle: RePEc:spr:empeco:v:39:y:2010:i:3:p:675-702
    DOI: 10.1007/s00181-009-0330-6
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    1. Akram, Q. Farooq & Eitrheim, Øyvind, 2008. "Flexible inflation targeting and financial stability: Is it enough to stabilize inflation and output?," Journal of Banking & Finance, Elsevier, vol. 32(7), pages 1242-1254, July.
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    3. Paulo R. Mota & Abel L. C. Fernandes, 2019. "The Dynamic Adjustment Of Central Banks’ Target Interest Rate: The Case Of The Ecb," FEP Working Papers 613, Universidade do Porto, Faculdade de Economia do Porto.

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    JEL classification:

    • C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Prediction Models; Simulation Methods
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

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