Thomas Schelling
He worked with several IIASA programs between 1994 and 1999, and was active in the YSSP program, as a muchappreciated advisor to several generations
of summer students.
He won the Nobel Prize in Economic Science in 2005 with Robert J. Aumann of the Hebrew University of Jerusalem for research on game theory that, according
to the New York Times, changed the way conflicts as diverse as trade wars and arms races are analyzed.