Methodology related to inflation and price indices

  • Deflators and how we use them in economic estimates

    Methodology | Released on 2 December 2022

    Explaining the different types of deflators and how we calculate them, as well as their importance for creating economic estimates, such as gross domestic product (GDP).

    Keywords: deflator, prices, indices, consumer, national accounts

  • Introducing multilateral index methods into consumer price statistics

    Methodology | Released on 28 November 2022

    How we will use the GEKS-Törnqvist to introduce alternative data into our consumer price statistics, including how the method works and its advantages.

    Keywords: GEKS, multilateral, inflation, CCDI, indices

  • Outlier detection for rail fares and second-hand cars dynamic price data

    Methodology | Released on 28 November 2022

    We are applying data cleaning techniques to web-provided and transaction data to remove out-of-scope observations and errors when calculating our consumer price indices.

    Keywords: data cleaning, outlier detection, fences, inflation, indices

  • Boosting the Northern Ireland price sample for the Consumer Prices Index

    Methodology | Released on 20 September 2022

    Details of work that the Office for National Statistics is undertaking to produce consumer price inflation estimates for Northern Ireland through a sample boost to the price collection.

    Keywords: Weights, CPI, CPIH, pricecollection, northernireland

  • Consumer price inflation, historical estimates, UK, 1950 to 1988 – methodology

    Methodology | Released on 18 May 2022

    A historical series of our lead measure of inflation, the Consumer Prices Index including owner occupier's housing costs (CPIH), which extends the series back to 1950. Definitive historical division-level indices for both Consumer Prices Index (CPI) and CPIH from 1950 to 1988 are available. Data in this release are not a National Statistic and are provided for indicative purposes only.

    Keywords: inflation rate, remodelling, rental equivalence, rent, housing costs

  • Identifying food price anomalies to support the Sustainable Development Goals

    Methodology | Released on 7 June 2021

    Details of the methodology used to apply the UN methodology for the Sustainable Development Goals Indicator 2.c.1, Food Price Anomalies, to the UK.

    Keywords: Sustainable, Development Goals, SDGs, 2.c.1, Food Prices, CPI

  • Services Producer Price Inflation QMI

    Methodology | Released on 18 January 2021

    Quality and Methodology Information for the Services Producer Price Index, detailing the strengths and limitations of the data, methods used and data uses and users.

    Keywords: SPPI, chain-linking, PPI

  • Producer price indices QMI

    Methodology | Released on 18 November 2020

    Quality and Methodology Information (QMI) report for the Producer Price Index, detailing the strengths and limitations of the data, methods used, and data uses and users.

    Keywords: SPPI, prices, PPI, methodology

  • Consumer price statistics: resuming a field-based price collection

    Methodology | Released on 17 August 2020

    This article describes our plans for resuming a field-based price collection for our consumer price statistics, in light of the relaxing of movement restrictions in the UK.

    Keywords: prices, , measuring inflation, CPIH, coronavirus, COVID-19

  • Household Cost Indices, UK, methodology for third preliminary estimates: 2005 to 2019

    Methodology | Released on 7 August 2020

    The methodological framework for the third preliminary estimates of the Household Cost Indices.

    Keywords: HCIs, Inflation, Household subgroups, democratic weighting