Summary In order to unravel the complex set of the determinants of fertility, we suggest that the child-bearing process be separated into a sequence of events and intervals. As the first step in the child-bearing process, age at first birth is a critical variable. Using data from the 1966-67 West Malaysia Family Survey, we formulate and test a model of the cultural, social and economic determinants of the timing of first birth among a sample of mothers, aged 30-44. Social origins, measured by the woman's father's occupation and the woman's birthplace are not important determinants, but education, early work experience, and ethnicity exercise very strong effects on the age at first birth. Age at first marriage mediates much of the effect of background variables, which suggest that there is little use of contraception to plan the first birth interval. The strong effect of ethnicity is consistent with a cultural interpretation, but important qualifications are noted.
Abstract This paper examines the determinants of age at first birth from an explicitly comparative perspective in the following Asian societies: Hong Kong, Indonesia, Malaysia, the Philippines, South Korea, Sri Lanka, Taiwan and Thailand. The key structural variables have the same (or similar) effects in each of the groups examined. Education through primary school and beyond has a strong delaying effect on age at first birth in all eight populations. Difference of rural-urban origin does not affect the timing of motherhood in any of these societies. We also find a remarkably strong effect of shared cultural heritage. All the Confucian groups tend to behave similarly, as do the Muslim and Hindu groups.