> You may have your pet theories as to what explains the statistic
Please avoid this race to the bottom. I could be wrong. You could be wrong. No need to say I have "pet theories." The EPA once told DDT was perfectly safe to spray around humans. We are all wrong about something.
"..under this metric for people with a college degree, there is virtually no pay gap at all."
https://www.washingtonpost.com/blogs/fact-checker/post/the-w...
"When controlled for education and career choices, women make 93% "of what men earned"
http://www.aauw.org/files/2013/02/graduating-to-a-pay-gap-th... (p20, 34)
The Confidence Gap is a great article which talks about how people are more likely to get high wages if they have confidence and ask for it, and how women have trouble with portraying confidence without being perceived as bitchy:
https://www.theatlantic.com/magazine/archive/2014/05/the-con...