I really miss some empirical economics and management research during that 4-day workweek debate. Most of the debates come from parties with a vested interest i

I really miss some empirical economics and management research during that 4-day workweek debate. Most of the debates come from parties with a vested interest in them. What makes me more curious is: what is going to be the minimum or maximum performance time offset in terms of competitiveness that the companies will need to overcome to adopt or not?