The Japanese are becoming older. Americans are also becoming older. Demographic stress in Japan, measured by the … dependency ratio (DR), is currently about 0.64. In the immediate pre-WWII era it was even higher because Japan's total fertility … note I simulate the DR under various conditions and make comparisons with the US. Japan has experienced a large increase in …

In this short note I simulate the DR under various conditions and make comparisons with the US. Japan has experienced a …. Fertility is the largest of the contributors in Japan. If there are no demographic changes in Japan, the DR will be 0.88 by 2050 …The Japanese are becoming older. Americans are also becoming older. Demographic stress in Japan, measured by the …