A third of east Asia’s economic boom, the study said, can be credited to favorable changes in population size and age structure, centred around smaller family sizes. This "demographic dividend", as per estimates, can see nations such as Kenya, Nigeria and Senegal increase their per-capita income by 47% to 87% by 2050 by satisfying their unmet need for family planning.
Family planning offers returns on investment as high as 120 times in terms of the economic benefits it brings through healthcare, according to this study published by the independent Copenhagen Consensus Center in 2014. In marketing jargon, globally family planning is thus considered a “best buy”.