Ben Brooks, commenting on this Fast Company article on six hour workdays:
It will be interesting to see what they learn. A lot of people love working “Four Tens” where you work four ten hour days instead of five eight hour days. However research seems to point to that being a poor choice overall for workers. I’d be a big fan of six hour work days overall, as I am pretty sure that is about the total amount of productive hours I get out of people.
In my experience, corporate America gets maybe 4 hours of work out of employees, if they’re lucky. If we cut our working hours in half to 20 hours a week I don’t think we’d see a dramatic downturn in productivity.