The document discusses equal pay and the Equal Pay Act of 1970. It provides three key points:
1) The Equal Pay Act requires that men and women be paid equally for equal work. Jobs do not need to be identical but must be substantially equivalent.
2) Unequal pay can be caused by gender discrimination in job grading, occupational segregation, and differences in labor supply. Other factors like part-time work and career breaks can also impact the gender pay gap.
3) Employers can defend against equal pay claims by proving the work is not equal or that pay differences are due to genuine material factors like qualifications or seniority, as long as the justification is objective.