Bishop, American Business Editor/New York Bureau Chief for The Economist, explained the basis for focusing on the super-rich as change agents in a recent interview with Alliance Magazine: “The point we’re making is that there are more super-rich people around than ever before and they have all sorts of problem-solving talents developed in their business lives that they are now looking to bring to bear on some of the world’s big problems.”

But while these philantrocapitalists may be willing to take greater risks with their checkbooks as compared to traditional philanthropic institutions, many of them have a deep interest in accountability and rigorous performance measurement. Bishop’s and Green’s Values blog recently published an entry on philanthrocapitalism’s need for robust impact measurement systems.  Acumen Fund’s new portfolio management system, called Pulse, was pointed to as one innovative “work-in-progress” solution aimed at addressing this challenge.

Bishop also recently interviewed Acumen Fund CEO Jacqueline Novogratz at the Clinton Global Initiative about Acumen Fund’s emphasis on market-based solutions to solving the problems of global poverty (the video can be viewed below or on The Economist’s website).

In reviewing the list of names and organizations included in Bishop’s and Green’s book, it is clear that philanthrocapitalism has as many distinctions in as it does similarities.  Though the movement is unlikely to settle on a precise spot along the scale of pure philanthropy to pure capitalism, an exciting, unifying theme emerges: there is great promise in connecting high net worth individuals with innovative intermediaries to move from social investment to long-term impact.