Who is the fairest of them all? The independent effect of attractive features and self-perceived attractiveness on cooperation among women

Jose A. Munoz-Reyes, Miguel Pita, Maria Arjona, Santiago Sanchez-Pages, Enrique Turiegano

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The present paper analyzes the extent to which attractiveness-related variables affect cooperative behavior in women. Cooperativeness is evaluated through a Prisoner's Dilemma Game (PDG). We consider several morphometric variables related to attractiveness: fluctuating asymmetry (FA), waist–hip ratio (WHR), body mass index (BMI) and facial femininity (FF). These variables have been shown to predict human behavior. We also include as a control variable a score for self-perceived attractiveness (SPA). We test differences in these variables according to behavior in the PDG. Our results reveal that low-FA women cooperate less frequently in the PDG. We also find that women with lower WHR are more cooperative. This result contradicts the expected relation between WHR and behavior in the PDG. We show that this effect of WHR on cooperation operates through its influence on the expectation that participants hold on the cooperative intent of their counterpart. In addition, we show that the effect of attractive features on cooperation occurs independently of the participants' perception of their own appeal. Finally, we discuss our results in the context of the evolution of cooperative behavior and under the hypothesis that attractiveness is a reliable indicator of phenotypic quality.
Original languageEnglish
Pages (from-to)118-125
Number of pages8
JournalEvolution and Human Behavior
Volume35
Issue number2
Early online date26 Nov 2013
DOIs
Publication statusPublished - Mar 2014

Keywords / Materials (for Non-textual outputs)

  • cooperation
  • attractiveness
  • fluctuating asymmetry
  • waist-hip ratio
  • body mass index
  • facial femininity

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