text: The implications of such a finding are enormous; most commentators say fostering growth is a critical driver of support for developing countries. As the excellent new book by AEI visiting scholar R. Glenn Hubbard and Columbia Business School lecturer William Duggan, The Aid Trap: Hard Truths About Ending Poverty (Columbia Business School Publishing, 2009), explains, most aid, though well intentioned, actually undermines the local business sectors in the poorest nations and should be refocused to help local businesses. Prosperity Index data broadly support this conclusion.