Thinking, Fast and Slow - Daniel Kahneman

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Part V. Two Selves 35. Two Selves 36. Life as a Story 37. Experienced Well-Being 38. Thinking About Life Conclusions Appendix A: Judgment Under Uncertainty Appendix B: Choices, Values, and Frames Acknowledgments Notes Index
Introduction Every author, I suppose, has in mind a setting in which readers of his or her work could benefit from having read it. Mine is the proverbial office watercooler, where opinions are shared and gossip is exchanged. I hope to enrich the vocabulary that people use when they talk about the judgments and choices of others, the company’s new policies, or a colleague’s investment decisions. Why be concerned with gossip? Because it is much easier, as well as far more enjoyable, to identify and label the mistakes of others than to recognize our own. Questioning what we believe and want is difficult at the best of times, and especially difficult when we most need to do it, but we can benefit from the informed opinions of others. Many of us spontaneously anticipate how friends and colleagues will evaluate our choices; the quality and content of these anticipated judgments therefore matters. The expectation of intelligent gossip is a powerful motive for serious self-criticism, more powerful than New Year resolutions to improve one’s decision making at work and at home. To be a good diagnostician, a physician needs to acquire a large set of labels for diseases, each of which binds an idea of the illness and its symptoms, possible antecedents and causes, possible developments and consequences, and possible interventions to cure or mitigate the illness. Learning medicine consists in part of learning the language of medicine. A deeper understanding of judgments and choices also requires a richer vocabulary than is available in everyday language. The hope for informed gossip is that there are distinctive patterns in the errors people make. Systematic errors are known as biases, and they recur predictably in particular circumstances. When the handsome and confident speaker bounds onto the stage, for example, you can anticipate that the audience will judge his comments more favorably than he deserves. The availability of a diagnostic label for this bias—the halo effect—makes it easier to anticipate, recognize, and understand. When you are asked what you are thinking about, you can normally answer. You believe you know what goes on in your mind, which often consists of one conscious thought leading in an orderly way to another. But that is not the only way the mind works, nor indeed is that the typical way. Most impressions and thoughts arise in your conscious experience without your knowing how they got there. You cannot tracryd>e how you came to the belief that there is a lamp on the desk in front of you, or how you detected a hint of irritation in your spouse’s voice on the telephone, or how you managed to avoid a threat on the road before you became consciously aware of it. The mental work that produces impressions, intuitions, and many decisions goes on in silence in our mind. Much of the discussion in this book is about biases of intuition. However, the focus on error does not denigrate human intelligence, any more than the attention to diseases in medical texts denies good health. Most of us are healthy most of the time, and most of our judgments and actions are appropriate most of the time. As we navigate our lives, we normally allow ourselves to be guided by impressions and feelings, and the confidence we have in our intuitive beliefs and preferences is usually justified. But not always. We are often confident even when we are wrong, and an objective observer is more likely to detect our errors than we are.
Page 1: A 1 E=mc 2 This eBook is provided b
Page 4 and 5: Contents Introduction Part I. Two S
Page 8 and 9: So this is my aim for watercooler c
Page 10 and 11: participants in our experiments ign
Page 12 and 13: easy to identify a small change in
Page 14 and 15: From what we know about the accurac
Page 16 and 17: agents in classical economics and i
Page 18 and 19: Psychologists have been intensely i
Page 20 and 21: Brace for the starter gun in a race
Page 22 and 23: event is detected that violates the
Page 24 and 25: attention on a boring book, when we
Page 26 and 27: You have been invited to think of t
Page 28 and 29: Start beating a steady rhythm (or b
Page 30 and 31: main finding was that the ability t
Page 32 and 33: Another is the prefrontal area of t
Page 34 and 35: Accelerating beyond my strolling sp
Page 36 and 37: The list of indications of depletio
Page 38 and 39: answer have missed an obvious socia
Page 40 and 41: In one of the most famous experimen
Page 42 and 43: “Unfortunately, she tends to say
Page 44 and 45: notion that we have limited access
Page 46 and 47: Studies of priming effects have yie
Page 48 and 49: ox changed significantly. The poste
Page 50 and 51: strain is affected by both the curr
Page 52 and 53: legs in packages of four. System 2
Page 54 and 55: message want to stay away from anyt
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kadirga, saricik, biwonjni, nansoma
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These findings add to the growing e
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of circumstances, events, actions,
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understand that I mean a normal tab
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attributions: infants under one yea
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ut the middle items in both display
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Real evidence of generosity is miss
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This procedure makes good use of th
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WY SIATI to help explain a long and
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constantly evaluated as good or bad
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For another example, consider the q
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What level of income in your profes
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“The punishment won’t feel just
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How happy are you with your life th
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Figure 9 As printed on the page, is
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The results this time were complete
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“We are using last year’s perfo
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A study of the incidence of kidney
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Large samples are more precise than
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The message about the poll contains
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interviewing of the pilots should s
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“The sample of observations is to
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parent’s demand that it be played
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operation of System 1. Although I d
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Uses and Abuses of Anchors By now y
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“The firm we want to acquire sent
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A dramatic event temporarily increa
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instructed to contract the zygomati
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found it difficult to find eight in
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The most influential studies of ava
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Differences between experts and the
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actual damage to health appear not
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usiness administration computer sci
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You probably ranked computer scienc
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epresentativeness when we judge the
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laziness. Some people ignore base r
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“They keep making the same mistak
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In the language of this book, we ha
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Which alternative is more probable?
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Björn Borg was the dominant tennis
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information was laid out in front o
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85% of the cabs in the city are Gre
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Interest in cycling is widespread i
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not draw from base-rate information
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chosen another surprising psycholog
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officer in the room to turn his bac
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Now let us go against the time arro
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piano playing = age + weekly hours
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Our difficulties with the concept o
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“Perhaps his second interview was
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Intensity matching yields predictio
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their usual mission, which was to e
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A Defense of Extreme Predictions? I
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Perhaps the most valuable contribut
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Overconfidence The Illusion of Unde
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sentence about an intuition that tu
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Although hindsight and the outcome
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The basic message of Built to Last
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someone’s shoulders and jump acro
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In 1984, Amos and I and our friend
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Some years ago I had an unusual opp
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The idea that the future is unpredi
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Short-term trends can be forecast,
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unpredictability. We describe them
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the values to make them comparable
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Even after being informed that the
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only task was to elicit relevant fa
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Professional controversies bring ou
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Klein elaborated this description i
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Acquiring expertise in chess is har
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Feedback and Practice Some regulari
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It is difficult to reconstruct what
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within the optimistic consensus of
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about an individual case rarely fee
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The diagnosis of and the remedy for
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Seymour’s statistical summary. If
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The evidence suggests that an optim
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had failed. A common thread of bold
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The consequence of competition negl
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one’s self-image. In essence, the
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ut I can still recite its first sen
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most significant work we ever did,
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The expected value of the gamble an
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how the sure outcome differs from t
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for so long to see the obvious. Sti
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problem 4. Obviously, other example
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Loss Aversion Many of the options w
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Figure 10 shows an abrupt change in
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and the failure to acknowledge them
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Students learn in introductory econ
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Loss aversion implies only that cho
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would share a Nobel Prize many year
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The fundamental ideas of prospect t
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“He is a miser, and treats any do
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Some distinctions between good and
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Many of the messages that negotiato
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wage cut. The replacement worker ha
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The Fourfold Pattern Whenever you f
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probability leads to inconsistencie
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Table 4 You can see that the decisi
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Figure 13 The top row in each cel
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time to cut one’s losses. This is
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“We never let our vacations hang
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People overestimate the probabiliti
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depend only on probability, not on
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The new hypothesis is that there wi
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another: “1,000 Americans will di
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experiments on choice from experien
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combining the two decision problems
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You can see in the display that the
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detection. As expected, broad frami
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dollar, money is a proxy for points
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provide a strong incentive: realizi
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Regret is not the same as blame. Ot
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vaccine that is effective only befo
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with long-term consequences. Hindsi
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are absent, and of course WYSIATI.
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“How tall is John?” If John is
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the threat of skin cancer in farmwo
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As we have seen, rationality is gen
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Would you pay $5 to participate in
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thousands of such experiments, and
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If program B is adopted, there is a
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point, and they are not about the r
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large print, but the move is in the
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The term utility has had two distin
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Figure 15 When the procedure was ov
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not have a voice. The remembering s
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Other classic studies showed that e
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we want to know whether they were r
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How would this prospect affect your
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welcome in any of these situations.
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exposure to loud noise, time pressu
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The satiation level beyond which ex
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the exact question they were asked,
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didn’t get it were significantly
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thinks much about. Thoughts of any
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stories and makes choices, and neit
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The mirror image of the same bias m
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explains how a rational agent with
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The example of a regulation about t
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The way to block errors that origin
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For an illustration of judgment by
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The values in parentheses are the n
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The illusion of validity. As we hav
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elementary demonstration of this ef
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imagine than unlikely ones; and tha
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event. The chain-like structure of
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lines or pages. Thus, people do not
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W. Edwards, “Conservatism in Huma
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Daniel Kahneman and Amos Tversky AB
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Figure 1. A Hypothetical Value Func
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If Program B is adopted, there is a
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same cd Cce f pattern of results wa
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In Figure 2, decision weights are l
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attractive if it is described as ef
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making, play a role analogous to th
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disadvantages as losses. Because lo
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The concepts of utility and value a
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McNeil, B., S. Pauker, H. Sox Jr.,
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editor could do as much as Eric did
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Us (New York: Guilford Press, 1999)
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working memory: Baddeley, Working M
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think with your body: Paula M. Nied
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engaged and analytic mode: Adam L.
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descriptions of two people: Solomon
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“Assimilation and Contrast Effect
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self-assessed contributions: Michae
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always weighted more: Jonathan St.
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inequality of income (measured by s
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outsiders, recruiting CEOs from com
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moderated by an arbiter: Mellers, H
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admiration of others: Entrepreneurs
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“history of one’s wealth”: Ot
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half of the tokens will change hand
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“acceptable/unacceptable”: Jos
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Samuel R. Gross and Kent D. Syverud
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“a sinking feeling”: Marcel Zee
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one embarrassing finding: Kuhn famo
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life as a whole these days: Another
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Los Angeles, Graduate School of Edu
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The index that appeared in the prin
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availability; affect and; and aware
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oken-leg rule budget forecasts Buil
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cognitive illusions; confusing expe
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default options denominator neglect
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Epley, Nick Epstein, Seymour equal-
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forecasts, see predictions and fore
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grades and grade point averages (GP
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inheritances injection puzzle In Se
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labor negotiations Lady Macbeth eff
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Mednick, Sarnoff Meehl, Paul meetin
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novelty Nudge (Thaler and Sunstein)
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t="-5%"> post-traumatic stress pove
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Rationality and the Reflective Mind
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Savage, Jimmie Save More Tomorrow S
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Steiger, James H. stereotypes; caus
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threats; possibility effect and 3-D
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wealth, see money and wealth weathe
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Grateful acknowledgment is made for
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Table of Contents Introduction 1. T
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Thank You W ant More Books? W e hop
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Thinking, Fast and Slow - Daniel Kahneman

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