Height as a Social Signal: How Body Shape Influences Subjective Well-being Through Social Interaction

Abstract

This study examines how height, as a prominent physical trait, transcends traditional biological and economic frameworks to reshape individuals' subjective well-being through micro-level social interaction mechanisms. Drawing upon representative data from the China Family Panel Studies (CFPS) (N = 25,162), we constructed a comprehensive analytical framework encompassing economic capital, cognitive abilities, quality of social interaction, and emotional experiences. Empirical findings from OLS regression and Structural Equation Modeling (SEM) reveal a robust net positive effect of height on subjective well-being, even after controlling for income and cognitive ability. Path analysis indicates that the quality of social interaction (manifested as higher interpersonal trust and social evaluation) and emotional experience (expressed as reduced negative emotions) serve as key mediating pathways through which height translates into well-being. Furthermore, heterogeneity analysis uncovers distinct gender norms: the happiness effect of height exhibits a linear growth pattern for men, aligning with traditional logic of masculine privilege; whereas for women, it follows an inverted U-shaped trajectory, suggesting that the benefits of height diminish or reverse beyond a certain threshold due to specific gender role expectations. This study confirms that in modern society, body shape functions as a form of visual capital, influencing the distribution of emotional energy in interaction rituals and ultimately determining psychological welfare.