Close to 3000 world leaders are convening in Davos at the World Economic Forum's Annual Meeting. 30 of them are social entrepreneurs from around the world. The theme of the meeting is "The Great Transformation: Shaping New Models". Watch what Muhammad Yunus and Wendy Kopp (Teach for America and Teach for All) contribute to this fundamental debate on the current capitalist system. "We need to expand the idea of business," said Nobel Peace Prize winner Mohammad Yunus, a board member of the Schwab Foundation for Social Entrepreneurship. "Rather than just making money, we need businesses that solve problems. We have enough technology, enough ability, and enough innovative capacity to make that happen."