Israeli-American psychologist and economist (1934–2024)
Daniel Kahneman (March 5, 1934 – March 27, 2024) was an Israeli-American psychologist. He shared the 2002 Nobel Memorial Prize in Economic Sciences with Vernon L. Smith. Kahneman is notable for his work on the psychology of judgment and decision-making, behavioral economics and hedonic psychology. Latterly, he was professor emeritus of psychology and public affairs at Princeton University's Woodrow Wilson School.
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When the question is difficult and a skilled solution is not available, intuition still has a shot: an answer may come to mind quickly — but it is not an answer to the original question. The question that the executive faced (should I invest in Ford stock?) was difficult, but the answer to an easier and related question (do I like Ford cars?) came readily to his mind and determined his choice. This is the essence of intuitive heuristics: when faced with a difficult question, we often answer an easier one instead, usually without noticing the substitution.
An experiment about your next vacation will allow you to observe your attitude to your experiencing self: At the end of the vacation, all pictures and videos will be destroyed. Furthermore, you will swallow a potion that will wipe out all your memories of the vacation. How would this affect your vacation plans? How much would you be willing to pay for it, relative to a normally memorable vacation? My impression is that the elimination of memories greatly reduces the value of the experience. Imagine a painful operation during which you will scream in pain and beg the surgeon to stop. However, you are promised an amnesia-inducing drug that will wipe out any memory of the episode. Here again, my observation is that most people are remarkably indifferent to the pains of their experiencing self. Some say they don’t care at all. Others share my feeling, which is that I feel pity for my suffering self but not more than I would feel for a stranger in pain. I am my remembering self, and the experiencing self, who does my living, is like a stranger to me.
Subjective confidence in a judgement is not a reasoned evaluation of the probability that this judgement is correct. Confidence is a feeling, which reflects the coherence of the information and the cognitive ease of processing it. It is wise to take admissions of uncertainty seriously, but declarations of high confidence mainly tell you that an individual has constructed a coherent story in his mind, not necessarily that the story is true.
System 1 continuously generates suggestions for System 2: impressions, intuitions, intentions, and feelings. If endorsed by System 2, impressions and intuitions turn into beliefs, and impulses turn into voluntary actions. When all goes smoothly, which is most of the time, System 2 adopts the suggestions of System 1 with little or no modification.
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The experiment shows that individuals feel relieved of responsibility when they know that others have heard the same request for help. Did the results surprise you? Very probably. Most of us think of ourselves as decent people who would rush to help in such a situation, and we expect other decent people to do the same. The point of the experiment, of course, was to show that this expectation is wrong. Even normal, decent people do not rush to help when they expect others to take on the unpleasantness of dealing
Anything that makes it easier for the associative machine to run smoothly will also bias beliefs. A reliable way to make people believe in falsehoods is frequent repetition, because familiarity is not easily distinguished from truth. Authoritarian institutions and marketers have always known this fact.