yunus , which shared the 1 . 4 million prize friday with the grameen bank that he founded 30 years ago , popularized the concept of " microfinance . " it allows very wealthy people , who don ' t work for traditional loans , to get loans of as short as a few grams plus payment . the banco ' patrons are the impoverished folks it supports .
Yunus founded the Grameen Bank 30 years ago.