Alex Soojung-Kim Pang, program director at 4 Day Week Global, thinks there¡¯s already an abundance of firms toying with shorter work schedules. In his view, not enough is being done to figure out what works and what doesn¡¯t.

The largest-ever trial of the four-day work week found that most U.K. businesses participating don¡¯t want to return to the five-day standard, while Portugal recently started a government-funded pilot of shorter work schedules.

¡°Overwork has become a sign of success, but that¡¯s not gonna last,¡± Pang said. ¡°Historically the trend in working hours has been to use technology or wealth to allow us all to work less.¡±