This is strange. They're paying companies to hire extra workers so everyone can work fewer hours? Sounds more like a jobs program than anything.
I haven't seen any studies but I'd not be surprised if this translates into an increase in total employment.
Another benefit I perceive is that by assuming that people will be absent, companies have higher bus factors by default and the increased resilience that goes with it. And of course, the reduced efficiency that comes hand in hand. I've lived through enough crises to favour resilience.
One of the important currencies in our industry is trust, and people only trust That Guy grudgingly. Sharing info is often reciprocated, and you have a clearer picture of the whole project. Something very necessary if you ever hope to be in leadership.
"Under the plans, an estimated 200 to 400 Spanish companies will voluntarily take part in the project by reducing their employees’ working week to 32 hours while keeping their salaries the same. The government will compensate participating businesses for any higher costs incurred by the changes, such as the need to hire additional staff or to reorganize scheduling and shift patterns. That investment will be financed through Spain’s share of the EU Coronavirus Recovery Fund."
https://reasonstobecheerful.world/spain-four-day-work-week-n...
(check out the graph "Annual working hours per worker" and see which country has the fewest working hours annually; you might be surprised)
And Microsoft Japan:
https://www.npr.org/2019/11/04/776163853/microsoft-japan-say...
https://news.ycombinator.com/item?id=26495933
https://news.ycombinator.com/item?id=21919721