Tversky was a cognitive psychologist whose collaboration with Daniel Kahneman on cognitive biases and prospect theory helped found the field of behavioral economics.

Their 1974 paper in Science, "Judgment under Uncertainty: Heuristics and Biases," became one of the most influential works in the social sciences.

• He served as a paratrooper officer in the Israel Defense Forces and was decorated for bravery.

• He taught at Stanford University from 1978 until his death, and received a MacArthur Fellowship in 1984.

• He died in 1996, six years before Kahneman received the Nobel Memorial Prize in Economic Sciences for their joint work; the prize is not awarded posthumously.