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Robert Frank – The Perfect Salary for Happiness: $75,000

In July, I blogged about a study that revealed subtle links between money and happiness.

The study, which analyzed Gallup surveys of 450,000 Americans in 2008 and 2009, suggested that there were two forms of happiness: day-to-day contentment (emotional well-being) and overall “life assessment,” which means broader satisfaction with one’s place in the world. While a higher income didn’t have much impact on day-to-day contentment, it did boost people’s “life assessment.”

Now we have more details from the study, conducted by the Princeton economist Angus Deaton and famed psychologist Daniel Kahneman. It turns out there is a specific dollar number, or income plateau, after which more money has no measurable effect on day-to-day contentment.

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