developing Asia as a whole will remain roughly constant during the next two decades despite rapid population aging in some … economies in developing Asia because population aging will occur much later in other economies and because the negative impact … of population aging on the domestic saving rate will be largely offset by the positive impact of higher income levels. …

We analyze the impact of population aging on Japan's household saving rate and on its public pension system and the …'s population can explain the level of, and past and future trends in, its household saving rate; second, the rapid aging of Japan …-as-you-go nature of the public pension system, combined with rapid population aging, created considerable intergenerational inequities …

the rapid aging of Japan's population has played the most important role; and fourth, that there is nothing to worry about …