A new study in Salt Lake City has concluded that women who work have less children than their stay-at-home counterparts.  And, women who go to work in academic world have even less kids.

Data was studied from the 2000 Census to come to the
conclusion that male faculty were also 21 percent less likely than male physicians to have a child.  Female faculty was 41 percent less likely to have a household with children than female medical doctors.

Researchers speculate that this results from the fact that  academic professionals take longer to have a secure job than doctors and therefore affects fertility.