Leonid Hurwicz, Nobel Prize-Winning Economist, Dies at Age 90

Leonid Hurwicz, the Nobel laureate whose economic theories found real-world applications at Google Inc. and the Federal Reserve, has died. He was 90.

Hurwicz, an emeritus economics professor at the University of Minnesota's Minneapolis campus, died yesterday, school spokesman Mark Cassutt said by telephone. Last year, he became the oldest person ever to win a Nobel prize.