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Impact of inflatıon gap to nomınal interest rates: case of Turkey


  • dogru, bulent
  • marabaoglu, akif


The objective of this paper is to examine the impact of inflation gap from target, deviation from targeted inflation, to nominal interest rate decision of Central Bank of Republic of Turkey (CBRT) in Turkey. Recently, ıt is discussed whether inflation target (IT) regime is the only method to achieve price stability goal or not in Turkey. Becasue the average inflation rate in Turkey during 1980-2002 is over 70 percent, Turkey has not become a potential candidate for IT regime. CBRT has begun to implement IT regime explicitly as late as after january 2006, when the country could able to reduce its inflation rate below 30 percent between 2002 and 2005. We apply unrestricted standard Vector Autoregressive (VAR) technique to series between 2002-2011, because it is known that CBRT has implemented IT implicitly betwen 2002-2005 and explicitly after 2006. Empirical findings indicates that the impact of inflation gap, deviated from targeted inflation, to nominal interest rate is insignificant. Therefore, we suggest that CBRT has implemented its implicit and explicit inflation targeting regime by discretionary measures not by policy rules during 2002-2011. This paper also finds that output gap is negatively and significantly related to the inflastion gap. If CBRT deviates 1 unit from its inflation target level, the logarithmic difference of output gap reduces 0.004.

Suggested Citation

  • dogru, bulent & marabaoglu, akif, 2011. "Impact of inflatıon gap to nomınal interest rates: case of Turkey," MPRA Paper 40472, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:40472

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    References listed on IDEAS

    1. Lohmann, Susanne, 1992. "Optimal Commitment in Monetary Policy: Credibility versus Flexibility," American Economic Review, American Economic Association, vol. 82(1), pages 273-286, March.
    2. Svensson, Lars E. O., 2000. "Open-economy inflation targeting," Journal of International Economics, Elsevier, vol. 50(1), pages 155-183, February.
    3. Sargent, Thomas J & Wallace, Neil, 1975. ""Rational" Expectations, the Optimal Monetary Instrument, and the Optimal Money Supply Rule," Journal of Political Economy, University of Chicago Press, vol. 83(2), pages 241-254, April.
    4. Leitemo, Kai, 2008. "Inflation-targeting rules: History-dependent or forward-looking?," Economics Letters, Elsevier, vol. 100(2), pages 267-270, August.
    5. Barro, Robert J., 1976. "Rational expectations and the role of monetary policy," Journal of Monetary Economics, Elsevier, vol. 2(1), pages 1-32, January.
    6. Guender, Alfred V., 2003. "Optimal monetary policy under inflation targeting based on an instrument rule," Economics Letters, Elsevier, vol. 78(1), pages 55-58, January.
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    More about this item


    Inflation targeting; Turkish Economy; inflation gap;

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation


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