The impact of social entrepreneurs—individuals who deploy innovation and market forces to fill social needs—is growing. Bringing light to Africa, mobile banking to Bangladesh, low-cost healthcare to Nepal, or even better school lunches to the American cafeteria: in all these cases, the private sector is a big part of the action.
That social entrepreneurs can make a difference is not in question. But there is plenty of potential left to unlock. What do these enterprises need to scale up? And how can they do it?