Inflation in the United Kingdom has irregularly downshifted over the past two months. In January, consumer price inflation remained steady at 2.8% over three months, the same pace as over six months. Core inflation ticked up to 3.3% over three months from 3.1% over six months but settled below the 12-month pace of 3.4%. Yet another measure, the HICP, comparable to the inflation rates reported by ECB numbers, logs 2.5% over three months, a slight uptick from six-month pace but less than the 12-month pace of 3%.
Diffusion The diffusion statistics that measure the breadth of acceleration of inflation across categories month-to-month came in at only 16.7% in January, down from 66.7% in December and compared to 33.3% in November. Diffusion readings below 50% indicate more deceleration than acceleration. So, inflation has been under control, with recent results showing more deceleration for inflation monthly than to accelerate. December was an exception. Over the 3 , 6 , and 12 month periods, inflation shows some acceleration tendency over 3 months, with diffusion at 58.3%; but that compares to 6-month diffusion at 16.7% and 12-month diffusion at 25%. Once again, the broad stroke for inflation, trending from 12 months to 6 months to 3 months, is showing more categories decelerating than accelerating.
Inflation rate ranking The final right-hand column ranks inflation rates on data back to 2000 based on their year-over-year performance. The current HICP, at 3%, has a 73.8 percentile standing among inflation rates back to 2000, marking it near the upper 25 percentile of the collection of results. The CPIH has a 79.6 percentile standing, putting it closer to the top 20% of observations over that same span. Core inflation at 3.4% has an 83.7 percentile standing, putting it in nearly the top 15% of results on data back to 2000.
Convergence around 2.8% The chart, supplemented by diffusion data, clearly shows that there is some inflation deceleration in progress; however, the level of year-over-year inflation still shows inflation among the upper ranges of what it's been over the last 25 years.








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