On 17 January 2023, the Office for National Statistics (ONS) published its latest consumer price inflation (CPI) statistics for the 12 months to December 2023, reporting that headline inflation has fallen to an annual rate of 4.0% compared with 10.5% a year earlier – a more than halving of the annual rate of price growth.

This contrasts with CPI excluding energy, food, alcohol and tobacco (typically described as core inflation), which was 6.3% and 5.1% in the 12 months to December 2022 and 2023 respectively.

The left-hand side of our chart this week illustrates how core inflation in the 12 months to December 2022 of 6.3% contributed just under 5.0% to the weighted average total inflation rate of 10.5%, with food prices up 16.8%, alcohol and tobacco up 3.7%, and energy prices up 52.8% contributing a further 1.8%, 0.2% and 3.5% respectively.

The right-hand side shows the 12 months to December 2023, where core inflation of 5.1%, food price inflation of 8.0%, alcohol and tobacco inflation of 12.9%, and a fall in energy prices of 17.3% contributed approximately 4.0%, 0.9%, 0.5% and -1.4% respectively to the weighted average total rate of consumer price inflation of 4.0%

The relative weightings may explain why many people feel that inflation is still running faster than the headline rate. Food prices, up 8.0% in the past 12 months, have increased twice as fast as CPI of 4.0%, while alcohol (up 9.6%) and tobacco (up 16.0%) have gone up by even more. These may have been offset by energy prices coming down by 17.3% over the past 12 months, but this may not be perceived as that beneficial given how energy is still significantly more expensive than it was before the cost-of-living crisis started.

For policymakers, the bigger concern will be the stickiness in core inflation, which remains stubbornly higher than the Bank of England’s target for overall CPI of 2.0%. While the expectation is that both core and headline rates will come down further during the course of 2024, the Bank is likely to remain cautious about declaring victory in the fight against inflation despite worries about the effects of high interest rates on the struggling economy.