As a company that moved to 4-day work week for our development team I can share the following results: - Output per person per day increased compared to 5-day

As a company that moved to 4-day work week for our development team I can share the following results: - Output per person per day increased compared to 5-day work week (throughput increased based on surveys, performance metrics and personal experience of leads) - Happiness increased - Fifth day remains as a reserve for extreme situations (eg. some unexpected thing occuring that requires additional capacity in the system) It is true that we're a dirty communist EU country, but so far this works for us. Btw: the fear of working less hours and doing more is real. Even internally some teams/employees do not want to move to 4-day work week saying it's not for them or that they can't cope with the time limit. And then they move and everything works out better... So implementing 32-hrs work for 80% of pay feels like a steal even with the overhead. You're probably getting better rested developers that output 100% of 40-hrs workweek.