Bill Drayton is chair and CEO of Ashoka. Since 1981, Ashoka has launched and provided support to nearly 3,000 social entrepreneurs — individuals with systems-changing solutions to the world’s most urgent social challenges. Prior to founding Ashoka, Mr. Drayton held positions with McKinsey and Co. and the U.S. Environmental Protection Agency. Mr. Drayton is also chair of Youth Venture, Get America Working!, and Community Greens. He is a graduate of Harvard, Balliol College at Oxford University, and Yale Law School.