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  1. 1

    World population projections, 1989-90 edition: short-and long-term estimates.

    Bulatao RA; Bos E; Stephens PW; Vu MT

    Baltimore, Maryland, Johns Hopkins University Press, 1990. lxxiii, 421 p.

    The World Bank's Population and Human Resources Department regularly publishes a set of world population projections based on its data files. This 1989-90 report has projections for the world and for regions, income groups of countries, and 187 countries. World Bank staff made projections to the point where populations reach stability. In almost all cases, they made only 1 projection. Projection tables for 1985-2030 exist for each country's population. Each country also has tables on birth rate, death rate, net migration, natural increase, population growth, total fertility rate, life expectancy, infant mortality rate, and dependency ratio. The report shows that from 1985-90 population growth was 1.74%, and projected 1990 world population size was 5.3 billion. By 2025, 84.1% of the world's population will be living in developing countries. 58% of the population now lives in Asia. The population of Africa is growing faster than that of Asia, however, (3 vs. 1.9%). By 2000, the population of Africa will be second only to that of Asia, yet in 1989-1990, it is behind that of Asia, Europe and the USSR, and the Americas. The current dependency ratio (67) is expected to decline to 53 by 2025. The highest current dependency ratio belongs to Kenya (120). In developed countries with aging populations, the dependency ratio will rise from 50-58. China will most likely to continue to be the most populous country for about 200 years. India will continue to contribute more to population growth than any other country in the world. Yet the Federal Republic of Germany loses 100,000 people yearly. Total fertility rates are the greatest in Rwanda, the Yemen Arab Republic, Kenya, Malawi, and the Ivory Coast (all >7.2). Afghanistan and 3 western African countries have the shortest life expectancies (about 40 years). These trends illustrate the need to alter population growth.
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  2. 2

    Population structure.

    Kono S


    This paper reviews recent new trends in population structure in the world and its major regions in order to access the determinants of those trends and explore issues regarding the recent and projected changes in the age structure of population and the relationships of those changes to social and economic development. In particular, the paper compares the change in age structure projected by the Population Division of the UN Secretariat in its most recent 3 series--namely, those completed in 1984, 1986, and 1988. By and large, the most recent UN assessment projects that a larger proportion of the world population will be aged 60 and over in 2000 and 2025 than was previously estimated. Those changes in projections can be observed for the world and for the more developed countries as a whole, and for the regions of Africa, Latin America, Northern America, East Asia, Europe, and Oceania. While the recommendations of the International Conference on Population called attention to the importance of changes in population structure, this paper recommends urgent government action in planning social programs for the aged because of the greater eminence of population aging in many settings. The case of Japan is used to illustrate the growing importance of increases in life expectancy as a determinant of age structure changes (in relation to fertility decline), a point that is reinforced through a cruder decomposition of UN estimates and projections for several European countries. (author's)
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