Jim Yong Kim, selected as the World Bank's new leader on Monday, has his work cut out for him. Sure, the bank has helped halve the poverty in the developing world over the past two decades -- part of the first Millennium Development Goals -- but progress in South Asia has dwarfed that in Africa, and 1 billion people will still live below the poverty line by 2015. And there's more bad news for Kim: The World Bank's narrow economic approach to poverty eradication simply will not work today, because the root causes of certain types of poverty are as structural as they are economic.