An econometric analysis of trends in fertility rates

Some regression models are used to test the hypothesis that changes in fertility rates have been caused by changes in socioeconomic conditions. The model is applied to four groups of countries and the conclusion is that no simple relationship exists between fertility changes and environmental changes. This conclusion is at variance with results derived from cross‐section studies and suggests not that there is no relationship between socioeconomic and fertility changes, but only that the relationship may be more complex than that considered in previous models.