"Women are powerful agents of development," says Betsy Teutsch in her new book 100 Under $100: One Hundred Tools for Global Women’s Empowerment. "Investing in low-income girls and women is not just a moral imperative; it is excellent policy for poverty alleviation."
That's because of the "Girl Effect," which says girls and women are better at lifting themselves and their families out of poverty than men and boys. Women tend to spend more family wealth on productive things like education and health. And their education has a catalyzing effect: Each year of schooling increases incomes by 10 to 25%, studies show.