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. 2022 Oct 8;1(5):pgac224. doi: 10.1093/pnasnexus/pgac224

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© The Author(s) 2022. Published by Oxford University Press on behalf of National Academy of Sciences.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2. — The log income–happiness correlation by the Gini coefficient in the USA and in Japan.

Note. The x-axis indicates the Gini coefficient. The y-axis is the correlation between the log of income and happiness (Fisher z-transformed). The error bar indicates the SE of the log income–happiness correlation. The blue line depicts the total trend (USA: y = 0.5921x + 0.3215, R² = 0.4281; Japan: y = 0.0232x + 0.237; R² = 0.010).