该理论是在上个世纪70年代被美国研究人家理查德·伊斯特林所创立，就是著名的"伊斯特林幸福悖论"。

The theory was first coined in the 1970s by US researcher Richard Easterlin and became known as the Easterlin Paradox。

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据著有一本关于幸福的书的经济学家理查德·莱亚德称，心理健康问题在英国给人们带来的痛苦多过生理疾病、贫困或失业。

Mental-health problems cause more suffering in Britain than physical illness, poverty or unemployment, according to Richard Layard, an economist and author of a book on happiness.

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理查德 艾斯特林曾在二十世纪七十年代后期发表过一篇文章，表明收入的增加与幸福感的增强并不成正比。

Richard Easterlin wrote a paper back in the 1970s showing that increased income doesn't correlate with increased happiness.

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