That's not what the gender pay gap is. It's about inequal pay for the same work.
Instead, the widely quoted 77 cents to the dollar (now 79) is simply the median earnings of (all) men compared to the median earnings of (all) women, not accounting for any confounders[1], such as hours worked, experience or field. So the name is also a misnomer (almost certainly intentional), because it is not a "pay gap", but an "earnings gap". An actual pay gap is illegal, illogical and grounds for lawsuits.
Why is it illogical (in addition to illegal)? For a lot of companies, pay is their major cost factor. If you could save 20% on that without any other negative consequences, at least some companies would hire all women and make a killing. And if you assume that people's support of "The Patriarchy" trumps their greed...well I don't really know what to think, and I'd also point out that there are female company owners (in fact, women own more than 50% and control an even larger portion of wealth in the US)
[1] http://www.slate.com/articles/double_x/doublex/2013/08/gende...
"Even when comparing the sexes with the same job title at the same company and using similar education and experience, the gender pay gap persists: Men earned 2.4 percent more than women on average, down slightly from last year"[1]
"Procurement Leaders recent research shows that female buyers are paid less than male buyers. That is, women are earning less for the same work." [2]
"After accounting for job, industry, education and experience, Blau and Kahn determined that 38 percent of the wage gap comes from factors “unexplained.”" [3]
[1] http://www.cnbc.com/2016/12/05/men-still-earn-more-than-wome... [2] https://www.forbes.com/sites/jwebb/2016/03/31/women-are-stil... [3] https://www.washingtonpost.com/news/wonk/wp/2016/03/08/its-2...
Only in a Motte-Bailey sense [1][2].
PM: "77 cents to the dollar, it's a crime!!"
DO: "That's complete BS".
PM: "Well, you're right, here is more reasonable data"
DO: "But that doesn't actually show a gap"
PM: "Oh my god, 77 cents to the dollar!!"
[1] http://slatestarcodex.com/2014/11/03/all-in-all-another-bric...
This comment links to a rigorous English dataset.
Band 5 staff earn between £21k and £28k. Band 8d staff earn between £65k and £81k.
When we restrict ourselves to a single healthcare profession (in this example I used widwives) that has many more women than men at the entry level jobs we still see men being promoted above women.
It doesnt change the fact there is no general wage gap when experience and accurate jobs comparison are taken into account.
In 2017, equal work DOES have equal pay.
The "accounting for job, industry" is very rough, so "social science" lumps together economists (66% male, $70k median income) and social workers (68% female, $40k median income).
"Hours worked" is also almost certainly not accounted for properly, as that is not a linear relationship of you get %x more for %x more hours. Instead, being willing to put in extra hours is seen as a token of submitting to the dominance hierarchy and key factor towards advancement. Saying something like "I structure my work so I get everything done in 40 hours" is not the correct answer when asked about your willingness to put in extra hours, because that's not what this is about. And men are generally more willing to do this than women, and men that are not are shut out of promotion just as much (or probably more) than women.
Also there is risk-taking. A study reported on in the Süddeutsche Zeitung[1][2](German) shows that even in controlled laboratory conditions, women chose low-risk strategies even when the "risk" is almost entirely theoretical and the advantages of a higher risk strategy clear. As the high-risk strategies on average lead to greater rewards (as in real life), the authors report there was a 23% gap in male/female earnings within that study.
Finally, it turns out that the lives of the top earners actually aren't all that great. They more or less suck. Women are more savvy about this, and have more alternatives, whereas men are much more motivated to stay in such negative environments for the status/money rewards[3].
When you put these factors together, they actually appear to over-explain the gender wage gap, and of course that isn't entirely unlikely[4]
[1] https://allesevolution.wordpress.com/2016/04/30/frauen-risik...
[2] http://www.sueddeutsche.de/karriere/gleichberechtigung-das-g...
[3] https://www.youtube.com/watch?v=gddjMm3Q3l0
[4] https://en.wikipedia.org/wiki/%22Women_are_wonderful%22_effe...
The version stubbornly pushed is simply that median_salary(all women) != median_salary(all men).
You can find a definition on Wikipedia [1].
One thing I think jecjec has neglected to consider, at least in writing, is that the history of our society and the roles women have played in it do have an impact on what fields women consider. There are always those who go against the grain (read: against what our culture "expects") -- women in technology, men in early childhood education, but they are outliers. Perhaps there is sound reason for some of these differences, but I suspect their could be a lot more even distribution between genders for many fields if we had the opportunity to hit the reset button. Perhaps that's what the gender pay gap is about.
For example, a recent BBC article asked "Why is Russia so good at encouraging women into tech?"[1] Fortunately, the article contains the answer: economic necessity.
"Most of the girls we talked to from other countries had a slightly playful approach to Stem, whereas in Russia, even the very youngest were extremely focused on the fact that their future employment opportunities were more likely to be rooted in Stem subjects."
So women in Russia follow the money, women in the west follow their passion.
I think they will, in time. There are still CEOs around who remember when women were mostly (almost exclusively?) secretaries. I think it's fair to want equality now, but not necessarily fair to expect society to move towards it in such a rapid fashion. Not to mention, even though we're a free society there are still endless reminders that men have these specific jobs, and women have those specific jobs. It's getting better (because people are pushing for it) but films are a usually an example of this: mostly male main characters, most business/finance/tech movies revolve around male characters. Most people to idolize in tech are male. I guess it would be hard to measure, but I'd be surprised to learn this pattern didn't have an impact on a young mind, male or female.
But they don't, regardless of your beliefs. This isn't about expectations or wishes. That data is in, and the most developed and most egalitarian countries (scandinavian) have the greatest self-segregation. And the less developed and the less egalitarian the country, the less the self-segregation, pretty much linearly.
Incidentally, this also explains the drop in female CS enrollment over time. I think we can all agree that the past was less equal than the present. So if your theory were correct, CS enrollment of women would have increased, compared to the past. However, CS enrollment of women has decreased, and people have been twisting themselves into pretzels trying to explain this via the "oppression" narrative. However, no such pretzel-logic is required if you accept the data: men have, on average, different preferences than women, and as societies get more free, those differences express themselves more. Easy peasy.
> mostly male main characters
But why is that? Is it because people don't want to look at women? Or is it because males tend, strongly, towards riskier behavior that makes for more plausibly interesting story lines? I think you are confusing cause and effect.
> Most people to idolize in tech are male.
Most people in tech are male, because of self-segregation, and therefore the ones that people will idolize will also be predominantly male. Factor in the fact that males tend to be much more prone to risk-taking, and the effect should probably be even larger than it is.
> an impact on a young mind
The "Blank Slate" hypothesis. Please read Pinker. https://en.wikipedia.org/wiki/The_Blank_Slate
> Noting that the raw wage gap is the result of a number of factors, the report said that the raw gap should not be used to justify corrective action, adding that "Indeed, there may be nothing to correct. The differences in raw wages may be almost entirely the result of the individual choices being made by both male and female workers."