My experience, which I relate in anecdotes, leads me to believe that the statistics are cherry-picked and in error. Plus, the statistic is given AS IF every woman is only making 78 cents to the dollar of every man, and it just ain't so.
http://www.aflcio.org/yourjobeconomy/women/equalpay/FactSheetTimeForEqualPay.cfm"Equal pay is a problem for all working women:
For women lawyers, whose median weekly earnings are nearly $373 less than those of male attorneys, and for women administrative support and clericals, who receive about $100 a week less than male administrative support and clericals;"
Comparing one median to another seems to me a big step back from comparing people of the same skills, education, and experience. (For example, how do we know that men and women have the same median of skills, education and experience?) Wide differences in pay due to those things and perhaps due to working for different companies, on different cases, and for different number of billable hours, those are all swept under the rug. Same thing with the clericals.
"For women doctors, whose median earnings are nearly $679 less each week than men's—or 58.3 percent of what male doctors earn—and for the 95 percent of nurses who are women but who earn $90 less each week than the 5 percent of nurses who are men;"
Again comparing medians and ignoring all other differences. Is this really a valid way of comparing salaries? I do not think so.
"For women professors, whose median pay is more than $244 less each week than men's, and for women elementary school teachers, who receive $86 less a week than men;"
In this case, do we not know that almost every university and every school district has a pay scale which is sexless? Pay is based on education and experience and other duties (coaching, tutoring, etc.) Show me just one major university where a woman with a PhD is paid less as an associate professor than a man with a PhD and I might believe in the dogma. However, the very fact that these differences in medians exist in places where I know the pay system to be quite fair, to me just makes the whole argument look weak.
"For women food service supervisors, who are paid $60 less each week than men in the same job, and for waitresses, whose weekly earnings are about $46 less than waiters' earnings."
The last one really takes the cake. The weekly earnings for a wait-person do not even depend on the employer, they depend on the customers. I think whoever did this study is really saying that the base pay for a waiter is higher than the base pay for a waitress. Total pay is going to be base pay plus tips. Anybody who can think with their little head can understand why the difference in base pay is not at all unfair. That is, if you believe people should receive equal pay for doing the same job. The difference in base pay helps to equalize the fact that women are getting more tips.
Then there is the whole matter of comparing different occupations:
"Jobs usually held by women pay less than jobs traditionally held by men even if they require the same education, skills and responsibilities. For example, stock and inventory clerks, who are mostly men, earn about $520 a week. General office clerks, on the other hand, are mostly women and they earn only $474 a week."
First of all, I hate to see an "outside expert" make that determination rather than someone who has worked both jobs. Second, isn't a clearer remedy, rather than doing all these comparisons, to make sure that women have equal opportunity to work as stock and inventory clerks and that men have equal opportunity to work as general office clerks. Also, they do not say if they are looking at starting pay or median pay.