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A measure of core inflation in the UK

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  • Andrade, Isabel
  • O'Brien, Raymond
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    Abstract

    We develop a measure of core inflation in the UK over the period January 1987 - December 1998, following the work of Bryan, Cecchetti, Wiggins and Roger. Disaggregation is into 85 price categories. Given the high kurtosis of the price change distribution over this period, a trimmed mean is a more robust estimator of core inflation than other published measures such as the RPIX widely used in the UK, in particular by the Bank of England when targeting inflation. We discuss the relative advantages of our measure of core inflation, with emphasis on the determination of an optimal trimming point and on the analysis of the products whose price changes are excluded from our measure in each time period. The resulting measure appears well behaved, but differs noticeably from a number of published measures. Working paper: accepted subject to revision

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    Bibliographic Info

    Paper provided by Economics Division, School of Social Sciences, University of Southampton in its series Discussion Paper Series In Economics And Econometrics with number 0708.

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    Date of creation: 18 Sep 2007
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    Handle: RePEc:stn:sotoec:0708

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    1. Shiratsuka, Shigenori, 1997. "Inflation Measures for Monetary Policy: Measuring the Underlying Inflation Trend and Its Implication for Monetary Policy Implementation," Monetary and Economic Studies, Institute for Monetary and Economic Studies, Bank of Japan, vol. 15(2), pages 1-26, December.
    2. Quah, Danny & Vahey, Shaun P, 1995. "Measuring Core Inflation?," Economic Journal, Royal Economic Society, vol. 105(432), pages 1130-44, September.
    3. Laurence Ball & N. Gregory Mankiw, 1993. "Relative-price changes as aggregate supply shocks," Working Papers 93-13, Federal Reserve Bank of Philadelphia.
    4. Jurgen A. Doornik, 1998. "Approximations To The Asymptotic Distributions Of Cointegration Tests," Journal of Economic Surveys, Wiley Blackwell, vol. 12(5), pages 573-593, December.
    5. HENRY, David F. & RICHARD, Jean-François, . "On the formulation of empirical models in dynamic econometrics," CORE Discussion Papers RP -502, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    6. Bent Nielsen & Soren Johansen and Rocco Mosconi, 2000. "Cointegration analysis in the presence of structural breaks in the deterministic trend," Economics Series Working Papers 2000-W22, University of Oxford, Department of Economics.
    7. Michael F. Bryan & Stephen G. Cecchetti & Rodney L. Wiggins II, 1997. "Efficient Inflation Estimation," NBER Working Papers 6183, National Bureau of Economic Research, Inc.
    8. Wynne, Mark A., 1999. "Core inflation: a review of some conceptual issues," Working Paper Series 0005, European Central Bank.
    9. Haldane, Andrew G, 1998. "On Inflation Targeting in the United Kingdom," Scottish Journal of Political Economy, Scottish Economic Society, vol. 45(1), pages 1-32, February.
    10. Pedro Duarte Neves & Luís Morais Sarmento & Carlos Robalo Marques, 1999. "Evaluating core inflation indicators," Economic Bulletin and Financial Stability Report Articles, Banco de Portugal, Economics and Research Department.
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