4min chapter

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas cover image

220 | Lara Buchak on Risk and Rationality

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

CHAPTER

Is There a Preference That Expected Utility Can't Handle?

Matthew Raven: If you don't like that initial coin flip between losing $100 and gaining $110, then your utility function has to be pretty concave. And if your utility function is already that concave in that low amounts of money, then once you get to losing $1,000, that's actually going to be more valuable than gaining any amount of money whatsoever. So the point is if we start in order to explain these, a small amount of risk aversion in low numbers, we have to imply an implausibly large amount of risk avoidance in large numbers.

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