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New York, New York, United Nations, Dept. for Economic and Social Information and Policy Analysis, Population Division, 1995.  p. (ST/ESA/SER.A/148)This chart tabulates the 1994 and the projected 2025 population of the world (broken down into more developed, less developed, and least developed countries) and of individual countries in the regions of Africa, Asia, Europe, Latin American and the Caribbean, Northern America, and Oceania. The chart then presents these figures for rural population (in thousands) and percentage urban population. The annual growth rate for 1990-95 is also shown as is the population of the largest urban agglomeration for each country in 1990. Bar graphs depict the percentage of population living in urban areas in 1994 and 2025 for the world and the regions, urban population in billions for each 5-year period from 1950 to 2025, and rural population in billions in the same manner for the same period.
In: Population structures and models: developments in spatial demography, edited by Robert Woods and Philip Rees. Boston, Massachusetts/London, England, George Allen and Unwin, 1986. 367-89.The fundamental question addressed in this chapter is the reasonableness of available projections of urbanization, such as those recently published by the United Nations....Drawing on simple models of urban and rural population dynamics, we propose two alternative methods for assessing projected urbanization paths in terms of their underlying assumptions. One focuses on the implied rural-urban migration flows, whereas the other emphasizes the association between urbanization and economic development. The case of the Asian Pacific region is given as an example. (EXCERPT)
POPULATION BULLETIN OF THE UNITED NATIONS. 1987; (19-20):70-81.This is a survey of the U.N. Population Division's contributions to the study of urbanization and internal migration, related research, and publications. In order to review these contributions, the relevant U.N. publications are classified under five broad topics: "estimates and projections of urban, rural and city populations, including problems of data comparability and methods to measure internal migration; monitoring of trends in urbanization; estimates and analyses of migration as a component of urban and metropolitan growth; studies of demographic and socio-economic aspects of urbanization, and studies of demographic and socio-economic aspects of internal migration." (EXCERPT)
POPULI. 1986; 13(1):5-14.Within the next 50 years, the predominantly rural character of developing countries will shift as a result of rapid world urbanization. In 1970 the total urban population of the more developed world regions was almost 30 million more than in the less developed regions; however, by the year 2000 the urban population of developing countries will be close to double that in developed countries. A growing proportion of the urban population will be concentrated in the biggest cities. At the same time, the rural population in developing countries is expected to increase as well, making it difficult to reduce the flow of migrants to urban centers. Although urban fertility in developing countries tends to be lower than rural fertility, it is still at least twice as high as in developed countries. The benefits of urbanization tend to be distributed unevenly on the basis of social class, resulting in a pattern of skewed income and standard of living. Social conditions in squatter settlments and urban slums are a threat to physical and mental health, and the educational system has not been able to keep up with the growth of the school-aged population in urban areas. The problems posed by urbanization should be viewed as challenges to social structures and scientific technologies to adapt with concern for human values. It is suggested than 4 premises about the urbanization process should guide urban planners: 1) urban life is essential to the social nature of the modern world; 2) urban and rural populations should not be conceptualized in terms of diametrically opposed interest groups; 3) national policies will have an impact on urban areas, just as developments in the cities will impact on national development; and 4) the great cities of the world interact with each other, exchanging both trade and populations. The United Nations Family Planning Association stresses the need for 3 fundamental objectives: economic efficiency, social equity, and population balance.
In: United Nations. Department of International Economic and Social Affairs. Population projections: methodology of the United Nations. New York, N.Y., United Nations, 1984. 75-80. (Population Studies, No. 83; ST/ESA/SER.A/83)The changing character of urban growth in the latter part of this century will require a modification of the procedures used for uban projections. Definitions of urban areas need to be revised to move away from the concept of densely settled localities and to take into account forms of settlement in which "urban" populations are dispersed over wide areas. Since these newer, more dispersed, urban settlements present Governments with different problems from those presented by large densely-settled cities, and small towns present another set of problems, it would make sense to identify and make projections for 3 classes of urban settlement: central cities, peripheral urban areas and small towns. It is also argued that urbanization in the future may not proceed at the same rate as observed in the past and that some countries may remain primarily rural while other highly urbanized countries may experience declines in their levels of urbanization. While these results will be affected by the choice of urban definition, under any definition allowance ought to be made for a range of future patterns of urbanization. Computational methods have become relatively inexpensive and many countries are now providing much better base data for projections than was available a decade ago. These methods and data should be used to prepare alternative sets of urban-rural projections which take full account of the range of patterns of urbanization which may occur in the future. Finally, many nations have population redistribution policies which include measures to encourage or discourage the growth of particular cities or classes or urban settlement. While experience has shown that the specific numerical goals specified in such policies are rarely achieved and that growth often continues in areas where policies exist to discourage it, these policies often have some impact and should not be neglected. For countries which have fairly explicit redistribution policies, it would make sense to prepare 1 set of projections based on these policies. This set of projections would provide an illustration of how urbanization would depart from that expected from past trends if the policy objectives were realized and would aid in the discussion of these policy objectives.
New York, N.Y., United Nations, 1984. 85 p. (Population Studies, No. 83; ST/ESA/SER.A/83)Upon a recommendation of the Population Commission, at its 20th session in January 1979, the Secretary General of the United Nations convened an Ad Hoc Group of Experts on Demographic Projections from 16 to 19 November 1981 at the UN Headquarters to discuss the methodology used for demographic projections and to consider the relationship of demographic projections to development change and population policies. The expert Group was also requested to provide guidelines and make recommendations to the Secretary-General on how to incorporate demographic changes into the methodology to be used for the next round of world population projections to be prepared by the UN Population Division in collaboration with the regional commissions. The papers prepared by members of the Expert Group as well as those prepared by the Population Division are reproduced in this publication. The recommendations of the Expert Group and a summary of the papers and discussion are also included. The topics addressed in this publication are: 1) problems in making population projections; 2) integration of socioeconomic factors in population projections; 3) population projections as an aid to the formulation and implementation of population policies; 4) current projection assumptions for the United Nations demographic projections; 5) expectations and progressive analysis in fertility prediction; 6) use of the intermediate factors in fertility projections; 7) family planning and population projections; 8) progress of work on a fertility simulation model for population projections at the UN Secretariat; 9) mortality trends and prospects in developing countries: some "best data" indications; 10) the urban and city population projections of the UN: data, definitions and methods; 11) a critical assessment of urban-rural projections with special reference to UN methods; and 12) projections in Europe: some problems.
New York, United Nations Fund for Population Activities; London, England, Croom Helm, 1980. 215 p.The Arab population, consisting of 20 states and the people of Palestine, was almost 153 million in 1978 and is expected to reach 300 million by the year 2000. Most Arab countries have a high population growth rate of 3%, a young population structure with about 50% under age 15, a high rate of marriage, early age of marriage, large family size norm, and an agrarian rural community life, along with a high rate of urban expansion. Health patterns are also similar with epidemic diseases leading as causes of mortality and morbidity. But there is uneven distribution of wealth in the region with per capita annual income ranging from US$100 in Somalia to US$12,050 in Kuwait; health care is also more elaborate in the wealthier countries. Fertility rates are high in most countries, with crude birthrates about 45/1000 compared with 32/1000 in the world as a whole and 17/1000 in most developed countries. In many Arab countries up to 30-50% of total investment is involved in population-related activities compared to 15% in European countries. There is also increasing pressure in the educational and health systems with the same amount of professionals dealing with an increasing amount of people. Unplanned and excessive fertility also contributes to health problems for mothers and children with higher morbidity, mortality, and nutrition problems. Physical isolation of communities contributes to difficulties in spreading health care availability. Urban population is growing rapidly, 6%/year in most Arab cities, and at a rate of 10-15% in the cities of Kuwait and Qatar; this rate is not accompanied by sufficient urban planning policies or modernization. A unique population problem in this area is that of the over 2 million Palestinians living in and outside the Middle East who put demographic pressures on the Arab countries. 2 major constraints inhibit efforts to solve the Arab population problem: 1) the difficulty of actually reallocating the people to achieve more even distribution, and 2) cultural and political sensitivities. Since in the Arab countries fertility does not correlate well with social and economic indicators, it is possible that development alone will not reduce the fertility of the Arab countries unless rigorous and effective family planning policies are put into action.
Community Development Journal. 1983; 18(2):104-19.A review of demographic trends and health and social problems in the fast growing urban areas of the world indicates that, in the future, increasing numbers of people will be living in precarious socioeconomic conditions which impede the achievement of health. It is estimated that from 4.4 billion in 1980 the world's population will increase to 6.2 billion by the year 2000. The urban population will increase from 1.8 to 3.2 billion during the same period, over 2 billion of which will be in developing countries. The rapid and often uncontrollable demographic growth of cities, especially in the developing world, stimulates the demand for resources, intensifies their utilization and creates an intolerable pressure on the urban infrastructure and physical environment. A number of action oriented projects to combat disease and contamination have been successful. Projects in Addis Ababa, Ethiopia, Colombo, Sri Lanka, Hyderabad, India, Guayaquil, Ecuador, Lima, Peru, and Rio de Janeiro have been implemented under a partnership among WHO, UNICEF, the Netherlands Aid Agency, the World Bank, and other international organizationals and governments. These projects all emphasize the fundamental role of community organizations, especially that of women; low-cost technology and the need to mobilize and efficiently use locally available resources; an ecological multisectoral concept of health whereby action concerning the environment, education, income generation and the availability of food, all with a powerful disease preventive potential, carry equal if not greater weight than the efforts to provide the population with health centers or implement curative practices. All these projects are focused on marginal groups; many were initiated by imaginative individuals or groups with a considerable amount of social orientation and motivation, and often, at least in the beginning, without the support of governments, nongovernmental or international organizations. It is important to study these projects in their accomplishments and failures; to help describe them and disseminate related information when appropriate; and to promote political and technical support for those which are successful so that they can rapidly come out of the experimental/demonstration phase and be expanded to become part of routine programs.