Hengel E. Publishing while female. Gender differences in peer review scrutiny. October 2016
The author analyzed more than 9,000 article abstracts published in the top four economics journals since 1950. She found that papers written by women are 1-6% more readable than those by men. The most straightforward reason for it is that referees apply higher standards to female-authored papers. Besides the paper found that women's writing gradually improves more over time but men's does not.
Between their first and third published articles, the average readability gap between male and female authors grows by 12%.