Global X interviews Geoff Davis, president and CEO of Unitus, a "microfinance accelerator" with a hybrid model combining best practices from investment banking, consulting and venture capitalism.

A business entrepreneur turned social entrepreneur (he launched a web company, worked in biotechnology and was part of a translation agency), Geoff Davis discovered "the power of microfinance to harness market principles and apply them to social issues."

The Unitus portfolio of microfinance institutions now serves three million families, 140% more than last year. Geoff Davis explains his success: "It starts with a vision for a better future, and a strong culture based on values and principles."

And it takes talent: "It's a people business! The Unitus team left corporate positions at National Geographic, Goldman Sachs, Microsoft and McKinsey, and they now apply their business skills to solve social problems."

His advice: "Think big! Think grand! Be audacious! Be bold, and powerful forces will come to support you. You will be able to attract top notch talent."

Yes, it's all about the talent: "Do anything you can to get the best people you can. There is nothing more expensive than a quick, medium hire. And there is nothing better or more powerful than an amazingly talented hire even if you have to take time and leave the position open to get it."