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Prediction Bias and Undershooting of the Inflation Target

In: Evaluation of the Fulfilment of the CNB's Inflation Targets 1998-2007

  • Juraj Antal
  • Michal Hlavacek
  • Roman Horvath

This paper is primarily concerned with assessing the bias of the CNB's predictions in relation to undershooting of the inflation target. We conclude, that the inflation prediction error has decreased over time. We further point out that the GDP growth respectively interest rates were above respectively below the forecast most of the time, even in the situation of systematic undershooting of the target. Thus, undershooting then cannot be explained with the help of standard demand mechanisms and positive supply impulses were admittedly underestimated in the past. According to our findings, about half of the apparent amount of target undershooting in 2003 was to be attributed to errors in exogenous factor (foreign interest rates, GDP and inflation) predictions. As follows from the distribution of inflation prediction errors across separate price segments, overpredictions of inflation during a prevailing portion of the period under review were to be attributed to mistakes in prediction of food prices and core CPI ex food, while prediction errors in energy prices mostly rather helped to approach the target. Prediction errors in regulated prices were acting in both directions.

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This chapter was published in:
  • Juraj Antal & Zuzana Antonicova & Jan Babecky & Michal Hlavacek & Tomas Holub & Roman Horvath & Jarek Hurnik & Ondra Kamenik & Karel Musil & Jiri Podpiera & Lubos Ruzicka & Michal Skorepa & Katerina S, 2008. "Evaluation of the Fulfilment of the CNB's Inflation Targets 1998-2007," Occasional Publications - Edited Volumes, Czech National Bank, Research Department, number 01 edited by Katerina Smidkova, May.
  • This item is provided by Czech National Bank, Research Department in its series Occasional Publications - Chapters in Edited Volumes with number 05.
    Handle: RePEc:cnb:ocpubc:05
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    Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

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    1. Horváth, Roman, 2009. "The time-varying policy neutral rate in real-time: A predictor for future inflation?," Economic Modelling, Elsevier, vol. 26(1), pages 71-81, January.
    2. Juraj Antal & Michal Hlavacek & Tomas Holub, 2008. "Basic Characteristics of Inflation Targeting in the Czech Republic," Occasional Publications - Chapters in Edited Volumes, in: Katerina Smidkova (ed.), Evaluation of the Fulfilment of the CNB's Inflation Targets 1998-2007, chapter 2, pages 18-34 Czech National Bank, Research Department.
    3. Jan Babecky & Jiri Podpiera, 2008. "Inflation Forecasts Errors in the Czech Republic: Evidence from a Panel of Institutions," Occasional Publications - Chapters in Edited Volumes, in: Katerina Smidkova (ed.), Evaluation of the Fulfilment of the CNB's Inflation Targets 1998-2007, chapter 6, pages 77-85 Czech National Bank, Research Department.
    4. William T. Gavin & Rachel J. Mandal, 2002. "Evaluating FOMC forecasts," Working Papers 2001-005, Federal Reserve Bank of St. Louis.
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