A psicologia da riqueza

Kahneman: Bias, Blindness and How We Truly Think, Pt 2
The psychological response to a change of wealth is inversely proportional to the initial amount of wealth, which suggests that utility is a logarithmic function of wealth. If this function is accurate, the same psychological distance separates $100,000 from $1 million, and $10 million from $100 million.
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