In a climate resistant to government spending on social causes, the focused donations of billionaire philanthropists may be the greatest force for societal change in our world. So says journalist Matthew Bishop in this Stanford Center for Social Innovation sponsored talk. Discussing his recent book, Philanthrocapitalism, Bishop shares anecdotes, analysis, and profiles of a small group of people who are influencing the lives of many by bringing their success in capitalism to giving, rather than to making money.