Yes, it's official women are twice as generous as men and far less selfish. Economists Catherine Eckel and Philip Grossman of the US Economic and Social Research Council asked subjects of both sexes to choose how much of a $10 cash allocation to keep, and how much to donate to an anonymous partner. On average, the women gave their partners $1.60, while the men gave just 82 cents. Women were also more likely to give anything at all.