According to a recent article in Psychology Today, women do ask for raises and promotions in numbers equal to or greater than men.  It has become accepted among some social scientists that women ask less than men.  The thinking has been that women are still paid less than men in most jobs, because many women hesitate to ask for better pay and opportunities.  This report in Psychology Today, however, finds just the opposite, that women ask for better pay and promotions slightly more often than men do.  See Law Professor report.  Women ask for raises 63% to 54% for men.  Women ask for promotions 19% to 17% for men, according to the study.