I was one rank above my partner, I was getting less money, I was working more than he was (and forget the 40hours/week talk, that is "load of bs"), and yet we had the same employer, the Government, who was supposed to be above all suspicious when it comes to gender equality.
And this happens everywhere. Why is my sister in law earning less than my brother when they both work in a insurance company, for the same boss, in the same field, in the same team, doing the exactly same work 65 hours a week? They both have the same qualification. The child she has is the same that he has. When the kid needs to go to the doctor, they both go. Where's the reasonable explanation for that?
Congrats on the anecdotal evidence. Make the sample size a hell of a lot larger, call it a study, and get published. Ask bosses the hard questions as well to try and gather their insight on the topic. Bonus points if it is a woman as a boss with a woman subordinate that is being paid less than a male coworker performing the same duties.
Also, going to go out on a limb, and say that the two have a different set of qualifications, one brings more to the table than the other (Difference notable by a manager, does not show up on a resume), or one happens to have a better working relationship with their boss.
We're basically identical people. We've been in every course together and I definitely do worse in school. I'm nearly failing out at this point.
I found that to be true as well. People that did well as students were often the last ones to find full-time jobs and in some cases accepted lesser offers. The kids that barely scraped by had a full time job lined up going into their senior year at a place with a reputation for paying out.