We describe the use of machine learning methods in the analysis of spatial soil fertility, soil physical …

the change in behavior of fertility rate at business cycle frequencies in the United States between the 1970s and 1990s … and shows how the cyclical and secular properties of fertility can be used to distinguish among several proposed theories … that account for the rise in labor force participation of married mothers. The model, in which households make fertility …

censuses and demographic surveys particularly the World Fertility Survey to ascertain trends in fertility and mortality. The … that fertility has increased in some countries--Kenya and Cameroon; has remained almost stable in Benin, Ivory Coast and …

This study investigates regional marital fertility differentials in Egypt and their relationship to the level of … Blake, 1965) underlying these regional levels and patterns of marital fertility are determined and their relation to the … birth rate in Egypt, the long term fertility and mortality levels are discussed. The prospects of a fertility transition in …

marriage behavior in determining fertility levels. Coale's parameters of the age pattern of first marriage ao, k and C are … first marriage, marital disruption and remarriage on fertility. Techniques for obtaining detailed information on the process … on fertility are discussed. …

children of educated workers are more likely to become educated, this fertility differential increaases the proportion of … fertility differential between the educated and uneducated is greater in less equal countries, consistent with the model …

took place in a concentrated period of time. Among the latter was a sharp fall in fertility rates, leading to a growing …