To estimate the correlations between individual wealth and cooperativeness, wealth and the use of punishment, cooperativeness and the use of punishment, as well as group inequality and wealth (S3–S9 Figs), we use ordinary least-square regressions with standard errors accounting for clustering by experimental groups.
![[This page as RDF]](http://data.gesis.org/somesci/static/rdf-icon.gif){kind=icon}