Judgment Under Uncertainty: Heuristics and Biases book club questions

1. 1.

   Kahneman and Tversky's program is built on identifying gaps between normative probability reasoning and actual human judgment. Do you find the normative standard — classical probability theory — to be the right benchmark? What else might count as good judgment?

2. 2.

   The representativeness heuristic leads people to ignore base rates. Think of a judgment you regularly make in your professional or personal life. Which base rates do you have available but probably underuse?

3. 3.

   Availability bias means we overweight what comes easily to mind. What risks in your own domain do you think you systematically overweight or underweight because of their availability rather than their actual frequency?

4. 4.

   The anchoring effect works even with arbitrary anchors. When you are negotiating, setting a budget, or making an estimate, how often do you take the first number seriously as information it shouldn't be?

5. 5.

   The Linda problem — in which people rate Linda-the-bank-teller-and-feminist as more probable than Linda-the-bank-teller — is one of the most replicated effects in the literature. Does the explanation (representativeness overriding probability) feel right when you introspect, or does it feel like a trick question?

6. 6.

   Calibration research shows systematic overconfidence. In which domains of your life do you think your confidence most exceeds your accuracy? How would you know?

7. 7.

   Gerd Gigerenzen has argued that many so-called biases are actually adaptive responses to the environments humans evolved in, and that the laboratory tasks used to demonstrate them are ecologically unusual. How persuasive do you find this critique?

8. 8.

   The book is an academic anthology from 1982. How much has the heuristics-and-biases literature changed or been refined since then, and which of the original findings do you think have aged best?

9. 9.

   Kahneman later developed these ideas into the System 1 / System 2 framework. Is that later framing an improvement, or does it lose something from the original papers' more specific accounts of each heuristic?

10. 10.

    Many readers encounter this material through Thinking, Fast and Slow rather than the original papers. What is the difference between reading popularized science and primary sources, and does it matter for how you apply the ideas?

11. 11.

    The research program has been applied heavily in policy — behavioral economics, nudge units, default design. What are the limits of applying laboratory-derived heuristics research to real-world institutional design?

12. 12.

    If you accepted the full force of the heuristics-and-biases findings, how would you change the decision-making processes in your organization, household, or professional practice?

How to run the discussion

• Pick six to eight, not all of them. An hour of real discussion covers fewer questions than anyone expects, and racing the list is what makes a book club feel like homework.
• Open with what people noticed, not what they concluded. Asking for a verdict first hardens opinions before anyone has heard each other.
• Let the disagreement run. The questions below that split a room are the ones worth the time; the ones everyone answers the same way can be skipped.
• Ask the quiet person a specific question. A direct, narrow question is far easier to answer than an open invitation to contribute.