Differences between the earnings of men and women suggest that women are being paid less for doing the same job. Factors that attribute to the wage differences are (1) women are concentrated in those occupations which are less skilled and in which wages are relatively low, (2) women working on full-time schedules tend to work less overtime than men, (3) although women are as well educated as their male counterparts in terms of median years of schooling completed, there are differences in the kinds of education, training, and counseling they receive, which directs them into traditional and low-paying jobs, and (4) women on the average have fewer years of worklife experience than men. Studies have shown, however, that even after adjusting for some of these and other factors such as age, region, and industrial concentration, much of the male-female earnings differential remains unexplained representing a maximum measure of discrimination. Discussion of wage differences is covered in the topics (1) Occupational Status, (2) Educational Attainment, (3) Work Experience, (4) Overtime Work, and (5) Differentials by Race. Eight tables, covering half the document, show different comparative aspects of male and female earnings. (WL)