Methodology related to inflation and price indices

  • Consumer price inflation basket of goods and services 2017: Tables and annexes

    Methodology | Released on 14 March 2017

  • Notification of proposed changes to RPI in 2017

    Methodology | Released on 14 February 2017

    Correspondence between ONS and the Bank of England providing notification of our intent to use the new UKHPI in the calculation of housing components of the RPI in 2017.

    Keywords: inflation, RPI, changes

  • Bank of England response to proposed changes to RPI in 2017

    Methodology | Released on 14 February 2017

    Bank of England response to our intention to use the new UKHPI in the calculation of housing components of the RPI in 2017.

    Keywords: inflation, rpi, changes

  • Developing an Index of Household Payments, full responses: Feb 2017

    Methodology | Released on 10 February 2017

    Full comments received in response to our paper “Developing an Index of Household Payments”.

    Keywords: costs, inflation, payments, household

  • Quality assurance of administrative data used in CPIH

    Methodology | Released on 31 January 2017

    This publication documents the quality assurance (QA) assessment of all data sources used in the production of the Consumer Price Index with Owner Occupiers' Housing Costs (CPIH).

    Keywords: QAAD, Consumer price inflation

  • Developing an Index of Household Payments, summary of responses: Dec 2016

    Methodology | Released on 19 December 2016

    A representation of the comments received in response to our paper "Developing an Index of Household Payments" and the main points that have been raised. Our next steps regarding future development of this work are also provided.

    Keywords: Costs, Inflation, Consultation, Consumer Prices

  • Improvements in the production of UK Purchasing Power Parities data: December 2016

    Methodology | Released on 13 December 2016

    This article explains the improvements to UK data sources and methods used in the calculation of Purchasing Power Parities (PPP).

    Keywords: Relative GDP, prices, comparisons, rents, spatial

  • Owner occupiers’ housing costs in CPIH: quality assurance of administrative data, Dec 2016

    Methodology | Released on 6 December 2016

    CPIH is a version of CPI that includes the cost of owning, maintaining and living in one's home, this element is known as the owner occupied housing cost (OOH). This paper aims to inform users of the quality of administrative data used in OOH, due to its high impact on CPIH.

    Keywords: QAAD, data quality, inflation, private rents, household expenditure

  • Users and uses of consumer price inflation statistics

    Methodology | Released on 28 October 2016

    This article contains information about the users and uses of consumer price inflation statistics and user experiences of these statistics. In addition, it provides information on the characteristics of the different measures of consumer price inflation in relation to potential use, which may vary depending on the population of interest to the users and the way the indices are compiled. The last section covers the history of the indices. Users can use this information to help inform their own decision making in regards to which index is most suitable for their particular purpose.
  • Assessing the Impact of methodological improvements on the Consumer Prices Index

    Methodology | Released on 18 October 2016

    This paper sets out the impact of implementing two improvements in the Consumer Prices Index (CPI; the headline measure of inflation in the UK), CPI including owner-occupiers’ housing costs (CPIH), and their supplementary indices. These changes will not be applied to the Retail Prices Index (RPI). They are planned for March 2017. The first change is designed to improve the way that chain-linking is conducted, and is the result of an independent report on the double chain link; the second is the implementation of an additional level of detail (level 5, or ECOICOP) in the Classification Of Individual Consumption by Purpose (COICOP) structure. As the CPI is identical to the Harmonised Index of Consumer Prices (HICP), these improvements will also help us to better meet EU regulations.

    Keywords: CPI, chain link, COICOP5 classification