Authors Matthew Bishop and Michael Green examine this new movement and its implications. Proceeding from interviews with some of the most powerful people on the planet—including Bill Gates, Bill Clinton, George Soros, Angelina Jolie, and Bono, among others—they show how a web of wealthy, motivated donors has set out to change the world. Their results will have huge implications: In a climate resistant to government spending on social causes, their focused donations may be the greatest force for societal change in our world, and a source of political controversy.

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