In the end all these economic ideas are badly framed and practically dangerous, particularly in the hands of putative regulators. The same holds for a whole range of economic activity and regulators generally. It gives one pause.
I have come to a remarkably simple economic protocol that allows for the maximum economic performance. It is the readily available four hour shift whose availability is guaranteed to the individual. The cash value of that shift is sufficient to provide a barrack bunk, a shower, a laundry and a solid breakfast and lunch however managed and optimized. The army could do it.
The work involved would be considered light duty and almost everyone is able to contribute..An obvious default would be woodland grooming but there is plenty of work to handle internally before we go there.
The key is to provide a real option and place economic power in the hands of the worker. At that point market adjustment will quickly sort out everyone's actual behavior. Misuse of labor is readily handled by quitting. The absurdly incompetent owner will simply not keep staff.
What is doing the regulation is the market itself which now has a clear bid allowing workers an immediate exit strategy.