"In the largest public sector trial of the four-day week in Britain, fewer refuse collectors quit," reports the Guardian, "and there were faster planning decisions, more rapid benefits processing and quicker call answering, independent research has found." South Cambridgeshire district council's controversial experiment with a shorter working week resulted in improvements in performance in 11 out of 24 areas, little or no change in 11 areas and worsening of performance in two areas, according to analysis of productivity before and during the 15-month trial by academics at the universities of Cambridge and Salford... The multi-year study of the trial involving about 450 desk staff plus refuse collectors found:

• Staff turnover fell by 39%, helping save £371,500 in a year, mostly on agency staff costs.
• Regular household planning applications were decided about a week and a half earlier.
• Approximately 15% more major planning application decisions were completed within the correct timescale, compared with before.
• The time taken to process changes to housing benefit and council tax benefit claims fell.... Under the South Cambridgeshire trial, which began in January 2023 and ran to April 2024, staff were expected to carry out 100% of their work in 80% of the time for 100% of the pay. The full trial cut staff turnover by 39% and scores for employees' physical and mental health, motivation and commitment all improved, the study showed. "Coupled with the hundreds of thousands of pounds of taxpayer money that we have saved, improved recruitment and retention and positives around health and wellbeing, this brave and pioneering trial has clearly been a success," said John Williams, the lead council member for resources...

Scores of private companies have already adopted the approach, with many finding it helps staff retention. Ryle said the South Cambridgeshire results "prove once and for all that a four-day week with no loss of pay absolutely can succeed in a local government setting".