That women are paid less than men at work is not news. In the U.S., a gender pay gap is nearly ubiquitous. Even in Hollywood. We’ve figured out the gender pay gap is largely an artifact of women and men working in different jobs (and the jobs men work in simply pay more than the ones women work in). Yet when women and men work in similar jobs, men still tend to earn more than their female counterparts. What accounts for this difference?