A 2007 study found strippers were more likely to earn higher tips during the fertile stage of their cycle
Fertility and ovulation cycles are rarely noticed, if at all, by men, though a 2007 study involving exotic dancers claims otherwise. Titled “Ovulatory cycle effects on tip earnings by lap dancers: economic evidence for human estrus?”, the study was conducted by researchers from the Department of Psychology at the University of New Mexico, Albuquerque, USA, who followed 18 exotic dancers for sixty days to understand whether men can subconsciously detect a woman’s ovulation cycle.
Geoffrey Miller, Joshua Tybur, and Brent Jordan wanted to determine whether a woman’s fertile period was evident to males. They chose exotic dancers, believing tips could act as a solid indicator of perceived attractiveness. “We found strong ovulatory cycle effects on tip earnings, moderated by whether the participants were normally cycling. All women made less money during their menstrual periods, whether they were on the pill or not.”
On a Separate Note
A recent 2023 investigation separate from the exotic dancer study found no compelling evidence that personal grooming and dressing systematically changed around ovulation.
Speaking to Psychology Today, Geoffrey Miller, one of the paper’s authors, highlighted “how they talk and move when enticing a customer to buy a dance, and how they perform the dance itself.”
Over 296 shifts and 5,300 lap dances, eleven dancers — who were not taking hormonal contraceptives — experienced an increase in tips during their fertile window, averaging $335, whereas those menstruating earned an average of $185, and luteal dancers made an average of $260.
However, the tips were self-reported and were not measured by the researchers themselves, leading to a lack of concrete data documentation. The study was also based on the dancers’ own menstrual records. Given that the records were limited to 18 dancers over two months and that the same study appears not to have been conducted since 2007, too many gaps remain in the study.
Photo: Rick Hall (CC BY 2.0)

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