Today's New York Times has an article entitled, "Moving Past Gender Barriers to Negotiate a Raise".
A few nuggets of interest to negotiators:
"Women tend to negotiate less for themselves than men, when there aren’t clear standards on what they should be asking for, studies found. In fact, women worked longer and made fewer errors but paid themselves less than men did for similar tasks, according to another study. But that effect went away when women were given data on what others paid themselves."
"When negotiating for higher pay, research has found that it is not enough for women to act in a way that conforms to stereotypes. Acting feminine enough — that is, showing they care about maintaining good relationships as well as the communal good over themselves, for instance — helps women in the likability department. And that’s important. But that doesn’t necessarily make the person in the position of power any more likely to grant a woman’s request. Women also need to legitimize their requests, or find ways to make them seem more appropriate"