How about The Girl Effect right here?

http://www.girleffect.org/

"The Girl Effect is a movement based on the unique potential of adolescent girls to end poverty for themselves and the world. It’s about getting girls on to the global development stage and driving massive resources to them. It is based on the common belief in the field of International Development that when given the opportunity, girls and women are more effective at lifting themselves and their families out of poverty, thereby having a multiplier effect within their villages, cities, and nations."
https://en.wikipedia.org/wiki/The_Girl_Effect

Thanks to Mary for the heads up on this one.
She told me about a study that showed that if money goes to a poor female, 70% is used for family needs. Same money to the poor male, 30%.

"Girl Effect" has sparked controversy. Some examples such as this paper , or this one.