Negotiation starts from a base point though. It is exceptionally difficult to right a lifetime of wrong. By that I mean, women with work experience have lower salaries from the get go and when negotiating for pay at a new employer she starts with a lower pay history than males. Most employers will not jump a salary from say $78,000 to $100,000 AND most women are fearful of pricing themselves out by asking for such a jump. For those who will ask will rarely get the salary they deserve but may make up a little ground is they have been underpaid for an extended period of time.