So it's not that math class is tough?
Thank you to the Fivethirtyeight.com blog for providing some interesting data to support the notion that STEM education isn't failing women, STEM buisnesses are. In particular, the percentage of women obtaining STEM degrees is roughly 50% and has remained constant for more than a decade. The breakdown happens after, with fewer women hired and more leaving after a short period of time. Of particular interest is that job satisfaction isn't to blame.
If challenging work is not driving women away, what is? The day-to-day workplace environment can be factor, as it was for the recent Tinder case, but as usual, the Onion sums it up best. Explosions into the news aside, until STEM institutions address the high visibility and harder to understand sexism of salary imbalance, the gap cannot close.