If you have two equivalent competing companies, both paying the same salaries to the same number of employees, and one company accomplishes more by asking their

If you have two equivalent competing companies, both paying the same salaries to the same number of employees, and one company accomplishes more by asking their workers to 4 day weeks, then that company will be more successful and can put the other one out of business. Thus the key measure that this study would need to demonstrate would be not that the productivity/worker-hour ratio goes up but that also the productivity/worker-dollar goes up. If the latter is true, a lot of companies are going to take a close look at this because more is more.