Thinking, Fast and Slow. By Daniel Kahneman.
Farrar, Straus & Giroux; 352 pages; $30. Allen Lane; £25. Buy from
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Amazon.co.uk TOWARDS the end of “Thinking, Fast and Slow”, Daniel Kahneman laments that he and his late collaborator, Amos Tversky, are often credited with showing that humans make “irrational” choices. That term is too strong, he says, to describe the variety of mental mishaps to which people systematically fall prey. Readers of his book may disagree. Mr Kahneman, an Israeli-American psychologist and Nobel economics laureate, has delivered a full catalogue of the biases, shortcuts and cognitive illusions to which our species regularly succumbs. In doing so he makes it plain that Homo economicus—the rational model of human behaviour beloved of economists—is as fantastical as a unicorn.
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