We can see that women's income level clearly falls behind men's as they get older. One possible reason is that, in the past, the university enrollment rate of women was relatively low compared to that of men.
Another reason is that women may have less chance to develop their job skills, since they tend to give up continuing to work in order to raise children.7 With regard to women's job skills, I would like to show an analysis of the gap in literacy between men and women (Chart 17).