Using step-down linear regression, a model was found that predicts 89.15% of the variability in general satisfaction for a given country (P<0.001). Satisfaction with the financial situation was found to be the strongest predictor of general satisfaction (P<0.001), followed by perceived freedom (P<0.001) and gross domestic product (P=0.001). The model suggests that economic circumstances strongly influence our personal level of fulfillment. However, the data also suggests that the principle of diminishing marginal utility does apply to economic prosperity too.
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