Recent studies have shown that gender differences in personality tend to be larger in developed countries. I think more developed countries tend to have a toxic set of socal standards.

If you want to figure out why women are underrepresented in technology, examine the differences between boys and girls toddlers and how they interact with their environment. There is a 'girls toys' isle in store but not a 'boys toys'.

Work you way up to 4th grade and see that most girls remain interested in math and science but when they hit 6th grade something changes, a young woman feels pressure to express herself in certain ways or face social stigma.

There's a reason Big Bang theory is one of the few American shows banned in China, it's not just good old fashioned American anti-intellectualism, it's social engineering.