Schipper, Burkhard - Economics Department, University of California-Davis - 2012
testosterone, estradiol, progesterone, and cortisol in more than 200 subjects. Females bid significantly higher and earn … with salivary progesterone when controlling for gender, the use of hormonal contraceptives, and demographics. This also … hormonal contraceptives and to females in the luteal phase of their natural menstrual cycle when progesterone usually peaks …