The World Bank chose Korean-American physician Jim Yong Kim as its next chief on Monday in a decision that surprised few despite the first-ever challenge to the US lock on the Bank’s presidency. The Bank’s directors chose Kim, a 52-year-old US health expert and educator, over Nigerian finance minister Ngozi Okonjo-Iweala, who had argued that the huge lender needs reorientation under someone from the developing world. Kim, 52 and currently president of the Ivy League University Dartmouth, will replace outgoing president Robert Zoellick.