幸せの度合いと最も強く関連していたものは「他人のために使ったお金」である。

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Science 21 March 2008:
Vol. 319. no. 5870, pp. 1687 – 1688
DOI: 10.1126/science.1150952

Spending Money on Others Promotes Happiness
Elizabeth W. Dunn,1* Lara B. Aknin,1 Michael I. Norton2

Although much research has examined the effect of income on happiness, we suggest that how people spend their money may be at least as important as how much money they earn. Specifically, we hypothesized that spending money on other people may have a more positive impact on happiness than spending money on oneself. Providing converging evidence for this hypothesis, we found that spending more of one’s income on others predicted greater happiness both cross-sectionally (in a nationally representative survey study) and longitudinally (in a field study of windfall spending). Finally, participants who were randomly assigned to spend money on others experienced greater happiness than those assigned to spend money on themselves.

1 Department of Psychology, 2136 West Mall, the University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
2 Marketing Unit, 189 Morgan Hall, Harvard Business School, Soldiers Field Road, Boston, MA 02163, USA.

この論文は、
?全米のサーベイ
?企業に勤める人のボーナス前後の調査
?5ドルないしは20ドルを渡した実験
と三つのスタディーから、「幸せ」の度合いと最も強く相関していたのは「収入の額」でも「自分のために使ったお金」でもなく、「他人のために使ったお金」であったことを示したものである。

茂木健一郎 クオリア日記より

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