Ovulatory cycle effects on tip earnings by lap dancers
In an article titled “Ovulatory cycle effects on tip earnings by lap dancers: economic evidence for human estrus?” in the Journal of Evolution and Human Behavior 28 (2007) 375-381, Geoffrey Miller, Joshua M. Tybur, & Brent D. Jordan presented the results of an experiment designed to test the correlation of tips earned by lap dancers as a function of fertility as a proxy for sexual desirability.
The study was soundly constructed and enrolled 18 dancers who supplied data on 296 work shifts and approximately 5300 lap dance performed during that period. A lap dance was described as “entail[ing] intense rhythmic contact between the female pelvis and the clothed male penis.” (Barton, 2006; Beasley, 2003).
The results showed that exotic dancers in heat earned approximately $70 per hour, dancers in luteal phase earned about $50 per hour, while dancers “on the rag” earned about $35 per hour. Taking the pill, which induces a state of pseudo-pregnancy, results in an income loss of about 30%, which suggests substantially diminished sexual desirability; a good reason to consider an IUD.
The author’s conclude that:
"In serially monogamous species such as ours, women's estrous signals may have evolved an extra degree of plausible deniability and tactical flexibility to maximize women's ability to attract high-quality extra-pair partners just before ovulation, while minimizing the primary partner's mate guarding and sexual jealousy. For these reasons, we suspect that human estrous cues are likely to be very flexible and stealthy—subtle behavioral signals that fly below the radar of conscious intention or perception, adaptively hugging the cost–benefit contour of opportunistic infidelity."
Perhaps the most interesting revelation of the paper is the number of academic research papers that have been published on exotic dancers including, in addition to this one: