Most powerful people in the world (2008)

Timothy Geithner, President of the Federal Reserve Bank of New York, is ranked 15th. Accrdingto the magazine, Geithner is neither a household name nor a typical pick for a Treasury secretary. He's a career technocrat, with stints at Treasury, the International Monetary Fund and the New York Fed. And for what is usually an AARP job -- the average age of the last eight incoming Treasury secretaries has been 59 -- the 47-year-old is a mere whippersnapper.