In this study, we examine the effectiveness of the individual-punishment mechanism in larger groups, comparing groups of four to groups of 40 participants. We find that the individual punishment mechanism is remarkably robust when the MPCR is held constant despite the coordination problems...

Employing a two-by-two factorial design that manipulates whether dictator groups are single or mixed-sex and whether procedures are single or double-blind, we examine gender effect in a standard dictator game. No gender effect was found in any of the experimental treatments. Moreover, neither...