Sources of Bias in Inflation Rates and Implications for Inflation Dynamics

Rahel Braun and Sarah Lein

Journal of Money, Credit and Banking, 2021, vol. 53, issue 6, 1553-1572

Abstract: Official statistics measuring the cost of living are known to suffer from several biases. This paper shows that the size of the biases can vary with economic conditions. Using homescan data, it is first confirmed that official price indexes can be tracked using such granular data sets. While the often‐acknowledged substitution bias is shown to be relatively small, neglected preference adjustment and product entry/exit result in a 2.6 percentage point bias in the annual inflation rate on average. Furthermore, the bias is particularly large in the aftermath of a shock to relative prices, increasing to 3.7 percentage points.

Date: 2021
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Citations: View citations in EconPapers (4)

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https://doi.org/10.1111/jmcb.12848

Related works:
Working Paper: Sources of Bias in Inflation Rates and Implications for Inflation Dynamics (2021)
Working Paper: Sources of Bias in Inflation Rates and Implications for Inflation Dynamics (2019)
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Persistent link: https://EconPapers.repec.org/RePEc:wly:jmoncb:v:53:y:2021:i:6:p:1553-1572

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