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demography |
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demography (dĭmŏg`rəfē), science of human population population, the inhabitants of a given area, but perhaps most importantly, the human inhabitants of the earth (numbering about 6.2 billion in 2002), who by their increasing numbers and corresponding increasing needs can seriously affect the global ecosystem. ..... Click the link for more information. . Demography represents a fundamental approach to the understanding of human society. Its primary tasks are to ascertain the number of people in a given area, to determine what change that number represents from a previous census, to explain the change, and to estimate the future trends of population changes. The demographer also traces the origins of population changes and studies their impact. Demographers compile and analyze data that are useful for understanding various social systems and for establishing public policy in such areas as housing, education, and unemployment. BibliographySee K. Davis, ed., Demography Series (20 vol., 1976). demographyStatistical study of human populations, especially with reference to size and density, distribution, and vital statistics. Contemporary demographic concerns include the global birth rates, the interplay between population and economic development, the effects of birth control, urban congestion, illegal immigration, and labour force statistics. The basis for most demographic research lies in population censuses and the registration of vital statistics. |
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| The journal Demography has published a study claiming that 50 per cent of cohabitating couples separate within one year; 90 per cent separate within five years. If the percentage of minority students who graduate from high school does not increase at least on par with that of their white peers, the nation's economy will weaken, according to the Alliance for Excellent Education's new issue brief, Demography as Destiny: How America Can Build a Better Future. ABS director of demography Patrick Corr said by 2051 the number of people aged 65 and over is expected to double from 13% to 26%, and those under 64 would drop from 59% to 67%. |
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demography