Replacement Level Fertility

Replacement Level Fertility refers to the number of children a couple needs to have to replace themselves in the population, usually estimated at about 2.1 children per woman in developed countries. This figure accounts for infant mortality and other factors that can prevent a child from reaching adulthood. When fertility rates fall below this level, a population may decline over time, leading to potential challenges like an aging workforce and increased pressure on social systems. Conversely, consistently higher fertility rates can lead to rapid population growth and potential resource strain.