Ask for a raise, and you won't necessarily receive it-- especially if you're a woman. For a new study, researchers looked at 4,600 randomly selected employees across 800 work places in Australia. They found that, holding background factors constant, women ask for a raises just as often as men, but that women only obtained their raise 15 percent of the time, while men got their raises 20 percent of the time. Another find: 14 percent of males and 14 percent of females reported they do not ask for a raise because of concern for their relationships in the workplace. Researchers write, "The bottom line is that the patterns we have found are consistent with the idea that women’s requests for advancement are treated differently from men’s requests." (HBR.org)