gender wage disparity

[sixto]

I've read statistics that say women are paid only 72% of what men are paid for the comparable jobs. In what fields or industries is this so pervasively the case? Upper management and executive positions come to mind but are there states with a gender specific minimum wage? Are there unions or government institutions that pay women less? There has to be a massive population of women making only half what men make to average out the women in jobs with pay parity. What am I missing?

Sixto
87 300D