Cover of Models behaving badly

Models behaving badly

by Emanuel Derman · first published 2011

6mentions
5recommended by
6HN commenters
2012–2025first – last mentioned

83% recommend17% neutral

Why HN recommends it

Argues that models are metaphors that clarify what you want to understand, and warns against confusing them with reality; suits quants, scientists, and anyone using models in finance or everyday life.

Summarised by Claude from recommending comments

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Mentions per year

20 2007: 0 mentions2008: 0 mentions2009: 0 mentions2010: 0 mentions2011: 0 mentions2012: 1 mention2013: 0 mentions2014: 0 mentions2015: 1 mention2016: 0 mentions2017: 2 mentions2018: 1 mention2019: 0 mentions2020: 0 mentions2021: 0 mentions2022: 0 mentions2023: 0 mentions2024: 0 mentions2025: 1 mention2026: 0 mentions200720172026

What Hacker News says

  • a5seo · Jun 19, 2012 · Recommends

    http://www.amazon.com/Models-Behaving-Badly-Confusing-Illusi... "A model...[is] really much more of a metaphor, an attempt to find an analogy between something you want to understand and something to really do understand, either heuristically…

    on “Study predicts imminent irreversible planetary collapse” ↗
  • abuteau · Jul 3, 2017 · Recommends

    Other people that used that quote is Emanuel Derman. He's an interesting character (PHD in theoretical physics, Ex-Goldman Sachs Partner). He is the author of Models.Behaving.Badly: Why Confusing Illusion with Reality Can Lead to Disaster, on Wall Street and in Life [1] and wrote a great paper on Metaphors, Models & Theories. I did a review of his paper [2], but some highlights:…

    on “Misleading metaphors” ↗
  • madrafi · Dec 25, 2018 · Recommends

    …probability,philosophy...) that can be read on lesswrong.com) -Intuition Pumps and other Thinking Tools -Sapiens -Edward.O Wilson Letters to a young scientist -Cédric Villani Birth of a Theorem -Emanuel Derman Models Behaving Badly -Letters From A Stoic by Seneca -Mathematics it's contents methods 3 Volumes (Aleksandrov et al.) -Nick Bostrom Superinteligence -The Moral Animal by Robert Wright

    on “Ask HN: Favorite nonfiction books of 2018?” ↗
  • bwfan123 · Feb 14, 2025 · Recommends

    …phenomena while theories explain them. we start with models, and then our curiosity eventually leads to a theory. refer [1] for a great read from a physicist turned quant. [1] https://www.amazon.com/Models-Behaving-Badly-Confusing-Illus...

    on “Does X cause Y? An in-depth evidence review (2021)” ↗
  • akg_67 · Aug 13, 2015 · Recommends

    …* Ian Ayres Super Crunchers Why Thinking-by-Numbers Is the New Way to Be Smart * David Salsburg The Lady Tasting Tea How Statistics Revolutionized Science in the Twentieth Century * Emanuel Deman, Models Behaving Badly * Benoit Mandelbrot, Richard L. Hudson The Misbehavior of Markets A Fractal View of Financial Turbulence * Nassim Taleb, Fooled by Randomness

    on “Ask HN: Good book about statistics and probability?” ↗
  • …time, wreaking havoc on even the best models made by scientists. “I’ve developed a lot of skepticism about anyone bringing their expertise from one field to another,” said Derman, author of the book “Models.Behaving.Badly” and a Columbia University professor of financial engineering. “They say stocks are like atoms, or like genes. But stocks are not atoms or genes. There is a resemblance, but ultimately they are very different.”

    on “Hedge Fund Uses Algae to Reap 21% Return” ↗

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