By GLENN GAMBOA
AP Business Writer
Jacob Harold believes philanthropy needs more “strategic promiscuity” – battling the world’s problems using a variety of approaches. It’s an idea that mirrors his wide-ranging career. Harold was president and CEO of GuideStar before it merged with Foundation Center to form the even larger nonprofit information source Candid, which he co-founded. To boost those chances, Harold wrote “The Toolbox: Strategies for Crafting Social Impact,” which hit bookshelves Thursday. “The Toolbox” offers nine strategies, or tools, philanthropists can use on a problem – from storytelling to behavioral economics to community organizing.