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Comment by hyperbovine | Hacker News Reader

I think Derek Sivers has a lower marginal utility of income than your average schmo. :)

well, thats a simple consequence of having more income though!

Question: what is the right decay rate for the utility of each additional dollar of income in terms of overall buying power (assuming sane spending habits/hobbies)? I'd think it be zero up till some range, then sublinear, then some moderate polynomial, then a slow exponential?

Any thoughts?

I would say some kind of second derivative positive, quadratic function.

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(That's the best I can do for the -decay- rate).

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