The effect of normative pressures on fertility

Using longitudinal data from a sample of urban, white, married U.S. couples, this paper shows the effects of normative pressures from family and friends on whether or not the couple had a pregnancy within one year. A comparison of parity-specific and all-parity models indicates that more information and better predictions can be obtained from parity-specific models. Normative pressures predict pregnancy best at zero parity, with progressively attenuated predictions at higher parity. A comparison of models using husband and wife data together shows that two-sex models are better than models using either sex alone. In a variety of different models, normative pressures reported by husbands are better predictors of pregnancy than are normative pressures reported by wives. A comparison of models using aggregated measures of normative pressures with models identifying the separate individual sources of pressures indicates that each treatment provides different insights into the effects of normative pressures, but that predictive power is lost through aggregation.This study was supported by a grant from the Center for Population Research, NICHD (Grant No. N01-HD-42804). Boone Turchi and Karl Bauman were collaborators on the original study. The authors would like to thank Judy Kovenock for data analysis. Requests for reprints should be directed to J. Richard Udry, Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514.