A team of researchers from the University of California-Riverside, London Business School, and Columbia University found that moon-headed guys were "less cooperative negotiators compared to men with smaller facial ratios," and that "this lack of cooperation allows them] to claim more value when negotiating with other men." Interestingly, the effect is invisible when negotiating with women and these big-heads were deemed "less likely to reach an agreement in a negotiation that required cooperation to reach a creative, integrative solution.