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Proceedings of the National Academy of Sciences of the United States of America|May 16, 2012
China's life satisfaction, 1990-2010Richard A Easterlin, Robson Morgan, Malgorzata Switek, et al.
Proceedings of the National Academy of Sciences of the United States of America|December 15, 2010
The happiness-income paradox revisitedRichard A Easterlin, Laura Angelescu McVey, Malgorzata Switek, et al.
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