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Using the asymmetric trimmed mean as a core inflation indicator


  • Carlos Robalo Marques
  • João Machado Mota


This paper discusses the use of the trimmed mean as a core inflation indicator when the price changes distribution is fat tailed and asymmetric and computes several asymmetric trimmed means that meet all the conditions suggested in Marques et al. (2000). It turns out that the 10 per cent trimmed mean centred on the 51.5th percentile is the one with the lowest volatility and so, its use, as a core inflation indicator, is recommended.
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Suggested Citation

  • Carlos Robalo Marques & João Machado Mota, 2000. "Using the asymmetric trimmed mean as a core inflation indicator," Economic Bulletin and Financial Stability Report Articles, Banco de Portugal, Economics and Research Department.
  • Handle: RePEc:ptu:bdpart:b200005

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    References listed on IDEAS

    1. De Gregorio, Jose & Giovannini, Alberto & Wolf, Holger C., 1994. "International evidence on tradables and nontradables inflation," European Economic Review, Elsevier, vol. 38(6), pages 1225-1244, June.
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    Cited by:

    1. Nazif Catik & Ozlem Onder, 2010. "The Distribution of The Inflation in Turkey," Ege Academic Review, Ege University Faculty of Economics and Administrative Sciences, vol. 10(2), pages 613-625.
    2. Abdul Aleem & Amine Lahiani, 2011. "Estimation and evaluation of core inflation measures," Applied Economics, Taylor & Francis Journals, vol. 43(25), pages 3619-3629.
    3. Sanjay Kalra & Bui Thi Trang Dzung, 2016. "Robust Measures of Core Inflation for Vietnam," IMF Working Papers 16/19, International Monetary Fund.
    4. L. Aucremanne, 2001. "The use of Robust Estimators as Measures of Core Inflation," DNB Staff Reports (discontinued) 61, Netherlands Central Bank.
    5. Gatt, William, 2014. "An evaluation of core inflation measures for Malta," MPRA Paper 61250, University Library of Munich, Germany.

    More about this item

    JEL classification:

    • C43 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Index Numbers and Aggregation
    • 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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