these ten gifts, which exclude donations to universities, hospitals and cultural institutions, made up some of the year’s most inspiring “social” philanthropy. THE BRIDGESPAN GROUP, a Boston-based consultancy for nonprofts and philanthropists, recently released research that found only 20% of philanthropic big bets address social change—stuf like wiping out poverty or eradicating disease—even though ambitious goals dominate major donors’ aspirations. Were this “aspiration gap” to close, billions of additional dollars would be available. These, the ten biggest social-change gifts of 2015, show the way forward. For more, go to ssir.org/ big_bets.