I think nursing is one sector I could see directly translating shorter work weeks to higher costs. Something like bus drivers you could remove part of services. With factories labour should not be significant part of cost compared to raw materials.
In many areas you could just provide less hours of services, thus lower costs. But in some this is just not possible and those will cost more.
In many areas you could just provide less hours of services, thus lower costs. But in some this is just not possible and those will cost more.