From KPCC:
Robert Duncan Luce, an influential mathematical psychologist at UC Irvine, died Saturday. In a career that spanned more than half a century, Luce applied the power of mathematics to describe human behavior. "We're talking about an intellectual giant," said UC Irvine economist Don Saari, a colleague of Luce.... "Duncan Luce was an internationally significant scholar for over half a century," said UC Irvine Chancellor Michael Drake. "The world has lost a great scholar, and we have lost a great friend. He will be missed." The university said Robert Duncan Luce died after a short illness. He was 87 years old.

Audio recording and story are available at http://www.scpr.org/blogs/education/2012/08/13/9405/influential-uc-irvin....