Table S1. Characteristics of millionaires in the present study (Sample 1) and in Smeets et al. (2015).

Table S2. Raw mean differences in the perceived (Sample 3) and self‐reported (Sample 1) personality traits of high‐net‐worth individuals as compared with the general population (Sample 2).

Table S3. Results from latent and manifest mean comparisons on propensity score matched data using full matching on demographic variables.

Table S4. Results from measurement invariance analyses and summary of model fit statistics.

Table S5. Descriptive statistics of monthly gross income, monthly household net income, and financial assets in € for high‐net‐worth individuals (Sample 1) and the general population (Sample 2).

Figure S1. Panels A‐C show the distributions of logarithmized monthly gross income (A), monthly household net income (B), and financial assets (C) in Samples 1 (purple) and 2 (orange). To aid interpretation, a second x‐axis that contains the approximate corresponding €‐values in thousands of € was drawn.

Figure S2. Differences between perceived (from Sample 3) and actual personality (Samples 1 and 2) for the general population and high‐net‐worth individuals. Differences are displayed above the bars as Cohen's d values. All differences with the exception of the perceived and actual locus of control values for the high‐net‐worth individuals are significant at p < .05.