Don’t spend extra money on a new house, car, or social circle just to “move up a notch” among peers

Zero. All you have to do is ask one extra question before raising your budget: is this extra cost buying the actual product, or simply a higher status within your group? The hard part is resisting the urge to upgrade when everyone else does.

The National Survey of Families and Households (NSFH) in the U.S. followed the same individuals over two waves. The authors matched this data with local average incomes calculated from a 5% sample of the 1990 census. After controlling for personal characteristics and income, they found that higher neighbor incomes correlated with lower self-reported happiness. This effect was robust across different analytical methods and highly statistically significant. The authors noted that the drop in happiness from “neighbors earning more” mirrored the drop from “one’s own income falling by the same amount.” Even after accounting for individual-level changes over time or within-state differences, results remained consistent. This rules out explanations such as “people who prefer poorer areas are inherently happier” or unmeasured state-level factors. The effect was stronger among people with frequent neighbor contact but negligible for those interacting mainly outside their community. No difference emerged between renters and homeowners, contradicting the idea that higher housing costs in affluent areas reduce disposable income. Happiness declined only when comparing to neighbors with similar education levels; income differences among less-educated peers had little impact. The effect primarily operated through satisfaction with one’s material circumstances rather than other life domains. Finally, when both personal and neighbor incomes rose proportionally, overall happiness still increased.

Luttmer EFP (2005). Neighbors as Negatives: Relative Earnings and Well-Being. The Quarterly Journal of Economics, 120(3), 963–1002. https://doi.org/10.1093/qje/120.3.963；Luttmer EFP (2004). Neighbors as Negatives: Relative Earnings and Well-Being. NBER Working Paper No. 10667（本条引用的表述与数量级按这一版逐字核对）. https://www.nber.org/papers/w10667

Several factors justify a B rating: data come from repeated surveys of the same individuals, but this is the sole study of its kind conducted abroad; outcomes rely on self-reported happiness rather than monetary metrics. While the authors employed statistical controls such as within-person and within-state comparisons, it remains a non-randomized study. No comparable Chinese data exist. The benefit magnitude is classified as “moderate,” consistent with criteria established in Section 23 (don’t expect purchases to boost mood); savings could reach tens of thousands of yuan. However, lacking quantitative links between savings and happiness gains, this isn’t classified as “large.” This advice doesn’t discourage spending on larger homes, quieter neighborhoods, or shorter commutes — those purchases serve tangible needs. It targets only spending driven by “everyone else is upgrading, so I must too” mentality. Prioritization of housing factors is discussed in Section 4, Item 18 (commute time matters most). Using purchases to improve mood is addressed in Section 23 (material goods won’t deliver lasting joy). Excessive social comparison is cautioned against in Section 3, Item 21 (don’t obsess over others’ lifestyles).