Usually I don’t like him because he takes every chance he gets to jump on the “hate government bandwagon” but lets start with Thomas Sowell’s recent column anyway. He tell us what Ceteris Parabis is:
“The old — and repeatedly discredited — game of citing women’s incomes as some percentage of men’s incomes is being played once again, as part of the “war on women” theme.
Since women average fewer hours of work per year, and fewer years of consecutive full-time employment than men, among other differences, comparisons of male and female annual earnings are comparisons of apples and oranges, as various female economists have pointed out.
When you compare women and men in the same occupations with the same skills, education, hours of work, and many other factors that go into determining pay, the differences in incomes shrink to the vanishing point — and, in some cases, the women earn more than comparable men.”
Then lets move to this first paper here:
In 2003, a new law required that 40% of Norwegian firms’ directors be women—at the time only 9% of directors were women. We use the prequota cross-sectional variation in female board representation to instrument for exogenous changes to corporate boards following the quota. We find that the constraint imposed by the quota caused a significant drop in the stock price at the announcement of the law and a large decline in Tobin’s Q over the following years, consistent with the idea that firms choose boards to maximize value. The quota led to younger and less experienced boards, increases in leverage and acquisitions, and deterioration in operating performance.
Now on the the Bureau of labor statistics. On average women work less hours than men, men work 40 and women work 35 hours per week. So that’s another explanation of the mythical “gender wage gap”, you could try to argue that the dependent variable in the model should just be the earnings per hour, but it would not work because its natural that people who work more hours get the promotion. This study here also supports the BLS:
In our data, the median male physician with 10 years of experience works 11 hours per week more than the median female physician in our sample with 10 years of experience. Simply put, the majority of women physicians do not appear to work enough hours earning the physician-wage premium to amortize that profession’s higher upfront investments.
This is also backed by this study:
This paper documents and studies the gender gap in performance among associate lawyers in the United States. Unlike most high-skilled professions, the legal profession has widely-used objective methods to measure and reward lawyers’ productivity: the number of hours billed to clients and the amount of new-client revenue generated. We find clear evidence of a gender gap in annual performance with respect to both measures. Male lawyers bill ten-percent more hours and bring in more than double the new-client revenue. We show that the differential impact across genders in the presence of young children and the differences in aspirations to become a law-firm partner account for a large part of the difference in performance. These performance gaps have important consequences for gender gaps in earnings. While individual and firm characteristics explain up to 50 percent of earnings gap, the inclusion of performance measures explains most of the remainder.
Even though the equal pay act has existed since 1963, pressure from feminist groups continue to attempt to destroy equality. It was normal that women take a few decades to get close to men’s wages since even when you first passed the bill that didn’t suddenly bring women’s skills up to men’s standards, it had to take awhile. Yet this movement persists, earlier this year they tried to pass the “Paycheck fairness act” but thankfully the senate didn’t go for it.
If after all this time feminists have been masquerading equal pay under the veil of equal opportunity then I have a better approach for equal wages. Mandate women’s work hours to mirror mens hours! We also could try force the other sex to change, force men to work less hours!
Moving further up on the ridiculous scale: Women take some days off after giving birth, and even if parental leave is also a thing, the reality is women take more leave than men. So we could fix the wage gap by mandating all women to have abortions every time! Or biologically change men so that they can also have babies!
So there is no problem, meritocracy is at work, is it really a problem that women don’t prioritize wealth as much as men do? I don’t think so. The market isn’t perfect but I have not seen conclusive aggregate evidence of market failure in this domain.
edit: here’s an interesting speech by Larry Summers on the topic http://www.harvard.edu/president/speeches/summers_2005/nber.php