Having read that summary of he study, it doesn't surprise me.
I thought folks were saying happiness maxed our around say $80 K income a year.
up to about $75,000 a year. The lower a person's annual income falls below that benchmark, the unhappier he or she feels. But no matter how much more than $75,000 people make, they don't report any greater degree of happiness.
While having an income above the magic $75,000 cutoff doesn't seem to have an impact on the former (emotional well-being), it definitely improves people's Robbins-like life satisfaction. In other words, the more people make above $75,000, the more they feel their life is working out on the whole. But it doesn't make them any more jovial in the mornings.
At $75,000, that effect disappears. For people who earn that much or more, individual temperament and life circumstances have much more sway over their lightness of heart than money. The study doesn't say why $75,000 is the benchmark, but "it does seem to me a plausible number at which people would think money is not an issue," says Deaton. At that level, people probably have enough expendable cash to do things that make them feel good, like going out with friends. (The federal poverty level for a family of four, by the way, is $22,050.)