Since both the death rate and the birth rate are almost at an all-time low on Taiwan, the main factor which influences the population growth is periodic changes. The age structure of the population will have a great effect on the future economic development of our society and the welfare of the people.
由於台灣地區的死亡與生育率均已迫近低限，未來影響人口成長的主要因素要為周期性的變動，而人口變遷能對未來的社會經濟發展或國民福利水準產生重大影響者，主要為未來的人口年齡結構。