The Educational Differentiation of African Birth Timing.

As educational access has expanded across Africa, birth timing has remained quite stable. Using data representing 51 birth years and 34 countries, we show that these modest aggregate changes mask more dramatic changes within educational groups. Over time, educational attainment has become an increasingly salient predictor of birth timing, as highly educated women have delayed first births and lengthened subsequent birth intervals more. The educational differentiation of birth timing also varies across contextual factors (educational access and family planning effort). In recent cohorts, women of all educational levels have experienced earlier first births in higher education contexts, suggesting that entry into motherhood is influenced by relative position within one's peer group. Aggregating across educational levels, however, women experience later first births in higher education contexts, driven by the greater share of highly educated women. For women at all levels of educational attainment, first birth timing is responsive to family planning context; in aggregate, women in countries with high family planning investments become mothers one year later than those in countries with lower family planning efforts. Notably, highly educated women lengthen their second birth intervals more when education and family planning are widely available, suggesting further potential for public investments to enable women to achieve their reproductive preferences.