World's largest test of four-day work week begins in U.K.

• The trial is a collaboration between nonprofit 4 Day Week Global, the 4 Day Week Campaign and independent research organization Autonomy.

The big picture: Previously, the largest four-day work week trials were conducted in Iceland with 2,500 employees from 2015 to 2019, according to CNN.

• The trials found an increase in employee wellbeing without a drop in productivity, CNN reported.

Yes, but: The four-day work week remains far from becoming the norm.

• In January 2022, only 1,700 jobs for every one million posted on Indeed.com advertised a four-day work week.