Geoffrey Miller's work could affect the earning potential of exotic dancers everywhere. Sara Kembriri from Albania performs during September's Miss Pole Dance Europe competition in Amsterdam. Psychologists found that the average earnings of professional exotic dancers rose when they were at peak fertility — which earned the researchers an Ig Nobel Prize. 

Miller, an associate professor of psychology at the University of New Mexico, and his colleagues knew of prior studies that found women are more attractive to men when at peak fertility. So they took the work one step further — by studying earnings of exotic dancers.

In the 18 subjects Miller studied, average earnings were $250 for a five-hour shift. That jumped to $350 to $400 per five-hour shift when the women were their most fertile, he said.

"I have heard, anecdotally, that some lap dancers have scheduled shifts based on this research," he said.

from:
http://www.msnbc.msn.com/id/26996167/