Standardized effect sizes (SI Appendix, section S3 has the calculation method) of changes in the situation (PT vs. NPT), variations in the antisocial personality scores and their interaction on investors’ behavioral trust, investors’ beliefs in back transfers, and agents’ actual back transfers. Furthermore, we also show the effect size of the antisociality score on investors’ punishment behaviors. Variations in antisocial personality scores have effect sizes that are quite comparable with the effect size of a punishment option that enables investors to impose severe sanctions on agents (for every CHF that the investor spends on punishment, the agent loses CHF 5). For behavioral trust, the effect size of the situational variable (PT vs. NPT) is somewhat larger than the effect size for antisocial personality, while the effect size of the situational variable is almost identical to the personality variable for investors’ expected back transfers and agents’ actual back transfers. However, by far, the biggest effect emerges for the personality effect on investors’ punishment. In addition, we observe significant interactions between the situational variable and the personality variable.