What roles of education (including skill) and experience play in determining relative wages by gender and race-ethnicity?

a. What roles of education (including skill) and experience play in determining relative wages by gender and race-ethnicity? Would choosing a college major and career in the sciences eliminate the gender- or race-based wage gap? Why, then, do we not see this happening more? Provide at least 1 scholarly source and 1 real-world example (new article, historical account, etc.) to support your arguments.

b. In a heterodox or political economy perspective on discrimination, why might occupational segregation or the wage gap persist, despite the intentions of “good employers,” those who are committed to eradicating (for example) statistical discrimination? Provide at least 1 scholarly source and 1 real-world example (new article, historical account, etc.) to support your arguments.