William "Bill" Drayton is a social entrepreneur. Born in 1943 in New York City, U.S. Drayton was named by "US News & World Report" as one of America's 25 Best Leaders in 2005. He is sometimes credited with having coined the phrase "social entrepreneur". Drayton is the founder and current Chair of Ashoka: Innovators for the Public, a nonprofit organization dedicated to finding and fostering social entrepreneurs worldwide. Wikipedia
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