Actually, that's not the original paper, it's a different one. Here is the original paper: http://www.pnas.org/content/107/38/16489.full http://www.pnas.org/co

Actually, that's not the original paper, it's a different one. Here is the original paper: http://www.pnas.org/content/107/38/16489.full http://www.pnas.org/content/107/38/16489.full You can see that the income scale is actually logarithmic. Did that blog author even read the paper? Kind of ironic him throwing around Dunning Kruger references. Anyway, the happiness definitely does level off at around $75k in the Kahneman and Deaton paper. It's just that other research shows happiness increasing beyond this point.