In the increasingly vital yet bewildering world of financial economics, Darrell Duffie is both a deep-level theorist and a hands-on plumber. He marries abstruse theory with solid reality and, unlike most economists, can then lucidly explain this often awkward union to those without his intuitive grasp. Few are better suited, then, to evaluate and clarify key challenges in the aftermath of the recent financial crisis. Duffie can’t eliminate the fog, of course, but his insights are among the sharpest. Read more here.