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  • Title: [Population change and social organization].
    Author: Tu JC.
    Journal: Ingu munje nonjip; 1986 Jun; (9):25-34. PubMed ID: 12222424.
    Abstract:
    This paper, published in Taiwan in June, 1986, studies the impact of demographic changes on social organization through stable population theory as applied to the USA. The stable population model indicates a constant age differential between death ratio and birth ratio maintained for a period of time in a given population. Since the 1950's, the population growth rate in the US has been 1.5%; social security tax revenue should increase 50% to maintain equilibrium. According to the US Census Bureau, in 1940, 11 people in 100 were age 65 or over; in 1980, 19 per 100; and 1 estimate places 32 in 100 over 65 in the year 2030. In 90 years the proportion of senior citizens will increase 3 times; social security taxes should consequently also increase 3 times. The stable population model would mean that social security tax should double its current rate to maintain equilibrium. However, based on the actual change in the population's age structure, social security tax should in fact increase at least 3 times. From 1940 to the present, social security tax revenue has already increased 3 times. Turning to education, in 1961, 4.39 million babies were born in the US. By the mid-1970's, births had slowed to an annual average of 3 million. The decrease in number of university students and posts available to Ph.Ds follows the birth rate change of 20 years earlier. Many graduate institutions will be influenced by this decrease in births. From another perspective, the birth rate decrease has also reduced the educational burden on society, and should provide more opportunities and resources. However, in the American educational system, research opportunities are determined by teaching positions which are dependent upon university enrollment figures. The US Census Bureau predicts that enrollment rates must double in order to compensate for the decrease in university age population.
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