Nobel prize-winning psychologist Daniel Kahneman has died, aged 90. His death was announced by Princeton University where he had been working since 1993.

• Kahneman wrote the best-selling book Thinking, Fast and Slow. It debunked the notion that people are rational beings who act out of self-interest - they act based on instinct, he argued.
• Kahneman was born in Tel Aviv, Israel, in 1934, and spent much of his early years in Nazi-occupied France, where his father worked as chief of research in a chemicals factory.
• The family moved to what was then British-ruled Palestine in 1948, just before the creation of the state of Israel.
• Kahneman graduated from the Hebrew University of Jerusalem in 1954, and went to the US four years later to begin a doctorate in psychology at the University of California Berkeley.