Other factors to consider (at least theoretically possible): - shorter week is part of compensation; (possibility to atract more or/and better employees). - m

Other factors to consider (at least theoretically possible): - shorter week is part of compensation; (possibility to atract more or/and better employees). - more people will start working/get hired; - productivity is not uniform thoughout a day/week (tiredeness); My best counterpoint at the same time is that intuitively I think that 1 person doing 5 days is more productive then 5 persons doing one day each, because communication/coordination does have a cost. (Surely tradeoffs and optimal points vary from role to role; some tasks are easier to parallelise)