Heavyweight Champion of the M.B.A.

Laura D'Andrea Tyson didn't accept her new job because of the weather. After all, who'd swap sunny California for bleak Britain? Instead, Tyson — who was U.S. President Bill Clinton's chief economic adviser from 1993 to 1996 — carefully weighed the pluses and minuses of a move from the dean's office at the University of California's Haas School of Business to the London Business School. "Weather isn't everything," says Tyson, who concluded that London is the place to be — a center for culture, commerce, the arts, business and world trade. Her task: to lead the L.B.S. in its "mission"...