The bill for a weekly shop in Britain’s poorest households rose by far more than it did in wealthy homes during the height of the cost of living crisis as the sharpest price increases affected cheaper brands, research reveals.
The study by the Institute for Fiscal Studies (IFS) found the least well-off had been hardest hit by “cheapflation” in the 2021-23 period – paying 29.1% more for their food, compared with 23.5% for better-off households.