Description Amos Tversky and Daniel Kahnemans 1974 paper Judgement Under Uncertainty: Heuristics and Biases is a landmark in the history of psychology.
Though a mere seven pages long, it has helped reshape the study of human rationality, and had a particular impact on economics - where Tversky and Kahnemans work helped shape the entirely new sub discipline of behavioral economics.
The paper investigates human decision-making, specifically what human brains tend to do when we are forced to deal with uncertainty or complexity.
Based on experiments carried out with volunteers, Tversky and Kahneman discovered that humans make predictable errors of judgement when forced to deal with ambiguous evidence or make challenging decisions.
These errors stem from heuristics and biases - mental shortcuts and assumptions that allow us to make swift, automatic decisions, often usefully and correctly, but occasionally to our detriment.
The papers huge influence is due in no small part to its masterful use of high-level interpretative and analytical skills - expressed in Tversky and Kahnemans concise and clear definitions of the basic heuristics and biases they discovered.
Still providing the foundations of new work in the field 40 years later, the two psychologists definitions are a model of how good interpretation underpins incisive critical thinking.
About the Author Dr Camille Morvan is a psychologist, researcher and founder of the psychological human resources company Goshaba.
She has taught at Sciences Politiques in Paris and at Harvard University, as well as working at the Ecole normale supérieure.
Dr Bill Jenkins holds a PhD in psychology from the University of Michigan.
He is currently co-chair of the Department of Psychology at Mercer University.
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