Sex Ratio at Birth, Polygyny, and Fertility: A Cross-National Study

Social Biology Vol/Iss. 51(1-2) Taylor & Francis Published In Pages: 71-77
By Barber, Nigel


The sex ratio should be higher in countries where contraception is widely practiced.


"because total fertility would be lower and average birth order would consequently be lower (72)." The results of this test were not significant in model A (B=.0053, t=1.06) but were significant in model B when total fertility is replaced with the natural log of the gross national product.


Test NameSupportSignificanceCoefficientTail
Multiple regression analysisSupportedp<0.01.22UNKNOWN


Variable NameVariable Type OCM Term(s)
Contraception useIndependentConception
Sex ratio at birthDependentBirth Statistics