Impact of correction to chain-linking methodology used in Producer Price Indices and Services Producer Price Indices: October 2025

Summary

The article will accompany the first publication of the fully corrected PPI and SPPI data with the aim of describing the methodology error that was identified in February 2025 and the corrections that have been applied. The article will also provide a summary of how these corrections have affected previously published data and how this has impacted the narrative articulated in the PPI and SPPI data since 2014.

Publications

• Impact of correction to chain-linking methodology used in Producer Price Indices and Services Producer Price Indices: October 2025

  Description of the methodology error we identified in our Producer Price Indices (PPI) and Services Producer Price Indices (SPPI) in February 2025 and the corrections that we have applied, including how these corrections have affected previously published data and the narrative expressed in the PPI and SPPI data since 2014.

Contact details

Changes to this release date

1. Previous date

   22 October 2025 9:30am

   Reason for change

   Publication time of 09:30 set in error, we apologise for the delay in publishing.