A UN report points out that in 1980, 42% of Asians lived in East Asia; that proportion will be well under a third by 2050. Indeed, by that date almost half of Asians will be South (and Southwest) Asians. From now until 2050, therefore, South Asia should enjoy an enviable demographic dividend, boosted by a rapidly growing working-age population. Former Asian Tigers such as South Korea used this same moment very effectively to transition to rich-country status.