World Population Estimates (1980 and 1985) and Projections (1990 and 2000) PDF Download

Author: Yang Xiaodong
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 12

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Book Description

Author: United States. Bureau of the Census
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 132

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Book Description
Presents population projections through the end of the 20th century. This report, supported by the Agency for International Development, shows three projection series (high, medium, low) to indicate reasonable limits for population expansion. Th.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069904
Category : Social Science
Languages : en
Pages : 369

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Book Description
Is rapid world population growth actually coming to an end? As population growth and its consequences have become front-page issues, projections of slowing growth from such institutions as the United Nations and the World Bank have been called into question. Beyond Six Billion asks what such projections really say, why they say it, whether they can be trusted, and whether they can be improved. The book includes analysis of how well past U.N. and World Bank projections have panned out, what errors have occurred, and why they have happened. Focusing on fertility as one key to accurate projections, the committee examines the transition from high, constant fertility to low fertility levels and discusses whether developing countries will eventually attain the very low levels of births now observed in the industrialized world. Other keys to accurate projections, predictions of lengthening life span and of the impact of international migration on specific countries, are also explored in detail. How good are our methods of population forecasting? How can we cope with the inevitable uncertainty? What population trends can we anticipate? Beyond Six Billion illuminates not only the forces that shape population growth but also the accuracy of the methods we use to quantify these forces and the uncertainty surrounding projections. The Committee on Population was established by the National Academy of Sciences (NAS) in 1983 to bring the knowledge and methods of the population sciences to bear on major issues of science and public policy. The committee's work includes both basic studies of fertility, health and mortality, and migration; and applied studies aimed at improving programs for the public health and welfare in the United States and in developing countries. The committee also fosters communication among researchers in different disciplines and countries and policy makers in government, international agencies, and private organizations. The work of the committee is made possible by funding from several government agencies and private foundations.

Author: United States. Bureau of the Census
Publisher:
ISBN:
Category :
Languages : en
Pages : 134

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Author: United Nations Publications
Publisher:
ISBN: 9789211483192
Category : Political Science
Languages : en
Pages : 124

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Book Description
The report presents findings from the 2018 revision of World Urbanization Prospects, which contains the latest estimates of the urban and rural populations or areas from 1950 to 2018 and projections to 2050, as well as estimates of population size from 1950 to 2018 and projections to 2030 for all urban agglomerations with 300,000 inhabitants or more in 2018. The world urban population is at an all-time high, and the share of urban dwellers, is projected to represent two thirds of the global population in 2050. Continued urbanization will bring new opportunities and challenges for sustainable development.

Author: International Labour Office
Publisher:
ISBN:
Category :
Languages : un
Pages : 0

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Author: Global 2000 Study (U.S.)
Publisher:
ISBN:
Category : Economic forecasting
Languages : en
Pages : 824

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Book Description
Report on world trends and long term prospects regarding population growth, natural resources and environmental issues - emphasizing the interrelationships between these areas, presents integrated approach projections to the year 2000 of fishery resources, forests, power resources, water resources, mineral resources, agriculture, climate and nuclear energy, etc., And includes a comparison of global model forecasting techniques. Diagrams, graphs, maps, references and statistical tables.

Author: Tommy Bengtsson
Publisher: Springer
ISBN: 3030050750
Category : Social Science
Languages : en
Pages : 349

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Book Description
This open access book describes methods of mortality forecasting and discusses possible improvements. It contains a selection of previously unpublished and published papers, which together provide a state-of-the-art overview of statistical approaches as well as behavioural and biological perspectives. The different parts of the book provide discussions of current practice, probabilistic forecasting, the linearity in the increase of life expectancy, causes of death, and the role of cohort factors. The key question in the book is whether it is possible to project future mortality accurately, and if so, what is the best approach. This makes the book a valuable read to demographers, pension planners, actuaries, and all those interested and/or working in modelling and forecasting mortality.

Author: Paul R. Ehrlich
Publisher:
ISBN: 9781568495873
Category : Social Science
Languages : en
Pages : 0

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Book Description

Author: Stefano Mazzuco
Publisher: Springer Nature
ISBN: 3030424723
Category : Social Science
Languages : en
Pages : 261

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Book Description
This open access book presents new developments in the field of demographic forecasting, covering both mortality, fertility and migration. For each component emerging methods to forecast them are presented. Moreover, instruments for forecasting evaluation are provided. Bayesian models, nonparametric models, cohort approaches, elicitation of expert opinion, evaluation of probabilistic forecasts are some of the topics covered in the book. In addition, the book is accompanied by complementary material on the web allowing readers to practice with some of the ideas exposed in the book. Readers are encouraged to use this material to apply the new methods to their own data. The book is an important read for demographers, applied statisticians, as well as other social scientists interested or active in the field of population forecasting. Professional population forecasters in statistical agencies will find useful new ideas in various chapters.