William Kirby Shireman 威廉·柯比·希爾曼 is a serial social entrepreneur, policy innovator, and conflict mediator who brings together capitalists, activists, conservatives, progressives, and other unusual bedfellows to overcome challenges that often divide them.The author of seven books and a lecturer at the UC Berkeley Haas School of Business, he serves as president of Future 500, co-chair of In This Together and the Donor Roundtable, and chairman of BridgeUSA.