How could the theory of factor pricing account for the fact that before the 1970 Equal Pay Act came into force in 1975 a number of women were paid less than men for doing the same work? What would...

How could the theory of factor pricing account for the fact that before the 1970 Equal Pay Act came into force in 1975 a number of women were paid less than men for doing the same work? What would this theory predict would be the effect of the legislation that made sex descrimination in pay illegal?