collected information on the female participants' menstrual cycles. We find that women bid significantly higher than men in … suggest an evolutionary hypothesis according to which women are genetically predisposed by hormones to generally behave more … ; menstrual cycle ; gender ; likelihood of conception ; first price auction ; risk behavior ; competition ; bidding …

with salivary progesterone when controlling for gender, the use of hormonal contraceptives, and demographics. This also … ; Gender ; Competition ; Aggression ; Dominance ; Risk-taking ; Endocrinological economics …