There are some econometrics studies that are more sophisticated, but they also do not get to the fact that the value of practically all work is determined subjectively by employers and is not easily objectified or quantified. The law that many people seem to have in mind is one that transfers the responsibility for determining the value of work from the government officials and private entrepreneurs to police and courts or to a government administrative agency. I am not certain how such a transfer would affect the efficiency of the job done by government employers, but it seems obvious that it would impose major costs on entrepreneurs. In short, I don't think that the existence of a problem or the solution that seems to be recommended is as evident as the statement of the various organizations listed below seems to claim. On the contrary, it appears to be a membership appeal.
Slavery is one of the answers capitalism has found.
They mean individual women making it under capitalism. They ignore the fact this means exploiting other women. We want working class women to have real power.