Pilot Study of Relationship between Fertility Risk and Bargaining

Competition for resources to support a healthy pregnancy and later offspring was likely very important for ancestral women. Therefore, it was predicted that women evolved a propensity for intrasexual competition over resources during times of their highest conception risk. To investigate this hypoth...

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Bibliographic Details
Published in:Psychological reports 2007-08, Vol.101 (1), p.302-310
Main Authors: Lucas, Margery M., Koff, Elissa, Skeath, Susan
Format: Article
Language:English
Subjects:
Adolescent
Adult
Competitive Behavior
Female
Fertility
Humans
Pilot Projects
Sexual Behavior
Social Behavior
Social Desirability
Socioeconomic Factors
Surveys and Questionnaires
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Summary:Competition for resources to support a healthy pregnancy and later offspring was likely very important for ancestral women. Therefore, it was predicted that women evolved a propensity for intrasexual competition over resources during times of their highest conception risk. To investigate this hypothesis, women played a series of ultimatum games, bargaining games that test participants' willingness to share a monetary stake. During periods of high conception risk, intrasexual competition increased as evidenced by lower offers to share a stake with others as well as higher rates of rejection of offers.
ISSN:0033-2941
1558-691X
DOI:10.2466/pr0.101.1.302-310