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      Using Engel curves to estimate CPI bias in a small, open, inflation-targeting economy

      Gibson, John; Scobie, Grant
      DOI
       10.1080/09603107.2010.491441
      Link
       www.informaworld.com
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      Citation
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      Gibson, J. & Scobie, G. (2010). Using Engel curves to estimate CPI bias in a small, open, inflation-targeting economy. Applied Financial Economics, 20(17), 1327-1335.
      Permanent Research Commons link: https://hdl.handle.net/10289/4643
      Abstract
      The Consumer Price Index (CPI) bias for New Zealand is calculated by estimating the food Engel curves for demographically similar households with the same level of CPI-deflated incomes at different points in time. For the 17 years from 1984 to 2001 the bias in the New Zealand CPI as a cost-of-living index averaged over 1% annually. This bias is similar to estimates for the US when the same method is used over a similar era. Thus, the claim of some statistical agencies that bias in their own CPI is less than the widely discussed bias in the US may not be supported. The estimated CPI bias justifies the initial choice of inflation target for the Reserve Bank of New Zealand but not the recent raising of the target.
      Date
      2010
      Type
      Journal Article
      Publisher
      Routledge
      Collections
      • Management Papers [1125]
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