I agree to Mansur
The companies will indirectly do that.Allocate more work and by default people work 11 hours per day and on weekends
The smartest comment is You are not efficient and hence you did not finish the work by Friday.So you need to come on Saturday and complete it
As it is in crunch times, people end up working late and on weekends
By forcing working Saturdays,I am not sure how the revenue will increase
As it is work forces you to come on Saturday with an official 5 day week
Now the side effect will be with an official 6 day week,you will have to complete the remaining work on the 7th day
This is no fun.