The way UK inflation is worked out is changing – and it will matter for everyone
- Written by Marcel Lukas, Senior Lecturer in Banking and Finance and Director of Executive Education, University of St Andrews

Visit a supermarket in 2025 and you’ll see that a tub of Lurpak butter can cost £5.70. It may strike you that this represents a staggering increase from £3.65 just three years ago, so instead of paying the premium, you reach for the supermarket’s own brand at £3.80.
This kind of switch,...