What is the primary method used to identify systemic bias in the gender wage gap through statistical analysis?

The primary method to identify systemic bias in the gender wage gap is through regression analysis. This statistical technique helps researchers understand how different factors, like education, experience, and job type, affect wages while controlling for these variables. By comparing the salaries of men and women who have similar qualifications and job roles, we can see if there is still a pay difference that cannot be explained by these factors. For example, if two employees with the same job title, experience, and education level earn different salaries, and the woman earns less, this difference may indicate systemic bias. This analysis allows us to highlight unfair practices that contribute to the wage gap between genders.