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In: United Nations. Department of International Economic and Social Affairs. Population projections: methodology of the United Nations. Papers of the United Nations Ad Hoc Expert Group on Demographic Projections, United Nations Headquarters, 16-19 November 1981. New York, United Nations, 1984. 4-6. (Population Studies No. 83 ST/ESA/SER.A/83)These recommendations refer specifically to the work of the Population Division of the UN and the regional commissions and more generally to the work of the specialized agenices, which prepare projections of labor force and school enroolment. The current recommendations may be regarded as updating an earlier detailed set that was issued by a similar group of experts who convened in New York in November 1977. The recommendations cover general considerations, sources and assumptions, evaluation of projections and their uses, and internal migration and urbanization. The Population Division should consider the question of an optimal time schedule for publishing new estimates and projections in order to avoid unduly long intervals between publications and intervals so short as to cause confusion. The UN Secretariat has an important role in pursuing work on methodology of projections and making it available to demographers in the developing countries. Unique problems of demographic projection exist for those countries with particularly small populations. It is proposed that the Population Division prepare special tabulations, whenever possible, giving the estimated age and sex distribution for these countries. Future publications of population projections prepared by the Population Division should indicate the major data sources on which the projections are based and note if the data were adjusted before inclusion. In addition, some grading of the quality of the base data should be presented. For the UN set of national and international population projections, a more comprehensive system of establishing assumptions about the future trends of fertility is needed. The Secretariat needs to focus more attention on the evaluation of its population projections. UN publications of projections should report on the main errors in recent past projections with respect to estimates of baseline levels and trends and provide some evaluation of the quality of the current estimates. It is recommended that the UN encourage countries to establish a standard definition of urban which would be used for international comparisons but generally not replace current national definitions. The Secretariat should review the techniques currently used to project urban-rural and city populations and search for methodologies appropriate to the level of urbanization and the quality of data which would improve the accuracy of the projections. The Division should regularly produce long range population projections for the world and major countries and should continue and expand its household estimates and projection series, which provides information essential to government administrators and planning agencies, businesses, and researchers in all countries.
New York, New York, UNFPA, 1986 Jun. x, 66 p. (Report No. 81)A UN mission was sent to assess and recommend areas for assistance in the field of population assistance in Lesotho. The mission recommends a population unit be set up and staffed with personnel able to initiate, coordinate, and document population research. It also should assist in the integration of population data into the planning process. Data needed to accomplish these tasks includes current statistics on the size, demographic, and socioeconomic details of the population; migration and geographical distribution; general health and nutritional status, including adult and infant mortality; the size and distribution of the work force; and the employment market and manpower in the private sector. Research is recommended in the following areas: resource limitations on development and job growth; international migration; effects of infertility on population growth and distribution; religion and culture in family planning; women's status in work force; effects of land tenure, land use and distribution; teen pregnancy; resources available to women; and effects of returning migrants on households. Also recommended are expanding health facilities and increasing staff training for this network. Family planning should be integrated with maternal and child health services. The mission finds that the government needs to promote a longterm formal program on population education, and designate an agency to coordinate such a program. The mission suggests that women's role in agriculture and other employment be analyzed, and also laws that effect their rights and responsibilities. It also recommends more small projects in rural areas and designating funds to help women gain self sufficiency.
Assessing the demographic consequences of major development projects. Proceedings of a United Nations Workshop, New York, 1-4 December 1986.
New York, New York, United Nations, 1988. vi, 183 p. (ST/ESA/SER.R/81)Although considerable awareness of the behavioral relationships and interactions between demographic and socioeconomic processes has been established, analysis of the specific demographic impact of development projects has lagged behind. To remedy this situation, the United Nations has undertaken a project aimed at developing a practical, cost-effective methodology for assessing the demographic impact of development projects in a variety of settings and countries. The approach developed is based on available sources of data such as censuses and vital registration systems. The methodology was applied in particular to electrification and irrigation projects in selected developing countries and a workshop was convened in 1986 to review the approach developed. Background papers presented at the workshop (included in this volume) focused on both the experiences of other institutions with population impact analysis and on methodological and measurement issues. Workshop participants identified 2 types of problems in measuring the strength of the relationship between a development project input and its demographic effect: those encountered in measuring the observed relationship for a given development project, and those encountered in assessing the relative effects of different projects. It was recommended that changes at both the macro and micro levels should be compared, with an emphasis on how such factors affect demographic behavior. Ecological analysis can then be used to identify the factors that explained demographic differences between communities. There was also consensus that the ideal methodological approach should involve an experimental/control design and a longitudinal time frame. For planners, the utility of such impact studies lies no only in investment allocation or priority ranking of development projects, but in the improvement of project design as well.
Bangkok, Thailand, United Nations. Economic and Social Commission for Asia and the Pacific [ESCAP], 1988 Aug. iii, 41,  p. (Asian Population Studies Series No. 62-K)The goal of this Economic and Social Commission for Asia and the Pacific (ESCAP) project was to help family planning administrators and other development planners to pinpoint areas of high and low fertility through reference to a series of maps. Maps have the advantage of being able to summarize an enormous number of items of information in an easily comprehendable manner, including not only the levels and trends of fertility of each area, but also the contrasts between areas and groups of areas at 1 time and over time. The project began when data from the 1980 censuses became available and focused on 10 countries: Bangladesh, China, India, Indonesia, Malaysia, Pakistan, the Philippines, Republic of Korea, Sri Lanka, and Thailand. The maps show in detail, in some cases at the level of very small administrative areas, levels and trends of fertility during the 1970s and where possible the 1960s. The 10 countries participating in this study had to develop new methodological techniques to estimate the fertility of small areas from census data. In most cases, fertility was estimated from the age-sex distribution and children ever born classified by age of mother. Central to the analysis was the concept of reverse survival, which assumes that the number of births can be estimated from the census counts of children and an estimate of the number of children who would have been enumerated in the census if they had not died. The major lesson of this study was that maps of fertility can be drawn with sufficient accuracy to show patterns that cannot be identified easily through any other approach.
RENKOU YANJIU / POPULATION RESEARCH. 1987 Sep; (5):43-8.The question of how to measure the influence of family planning in fertility has been addressed by numerous international scholars. Highlighted briefly here are some of the methods endorsed by United Nations publications and recognized by scholars of various countries: 1) Standardization; 2) John Bongaarts model; 3) Trend analysis; 4) Wishik model; 5) Converse model of Dorothy Nartman; 6) Potter model; 7) Nathan Keyfitz model; 8) "Plural model"; 9) Model analysis.
Voorburg, Netherlands, Netherlands Interuniversity Demographic Institute, 1985 Sep. ix, 56 p. (Working Paper of the N.I.D.I. No. 63)The objective of this report is to introduce the available techniques of life history analysis to study the data collected by the national migration surveys and to demonstrate the relevance of such techniques to provide more insight into to the problems addressed by the ESCAP migration and urbanization project. The 2nd section of the report introduces the basic concepts, with special reference to migration, and contains a simple example. Section 3 deals with 3 further issues which may arise while modeling migration histories: the alternative definitions of the state-space; the definition of the time dependence; and heterogeneity considerations and ways of dealing with heterogeneity for discrete state stochastic models of migration. The 4th section focuses on some major problems which may arise while estimating stochastic models of migration histories with ESCAP migration his. 2 issues are emphasized in this section: problems with the measurement of the timing of the events and issues related to using the information on the covariates of migration. Continous time stochastic models provide a powerful means of modeling event sequences. Migration histories consist of information on the times and the characteristics of migration experienced by individuals. More conventional ways of modeling such data are the dummy variables regression, the logit regression, or aggregation of the data are to form contingency tables and application of the log-linear models. Continous time event history models easily be generalized to incorporate complex designs of the state space, which express the moves between residences, and to provide detailed and cross nationally comparable information on the patterns of time dependence. Additionally, they are based on the estimation techniques which do not require unrealistic assumptions. These models aim at identifying a dynamic process that underlies the observed data. Estimated parameters of these models provide a description of the time dependence and also provide quantitative information about the effects of exogenous variables on the phenomenon of interest. The dependent variable of the continous time event history models is usually the instantaneous transition rate which is not directly observable. The estimated coefficients of the exogenous variables may be interpreted the same as the coefficients of a regression model, except that they usually have a multiplicative relation with the dependent variable. Once models of fundamental parameters of the underlying process are designed and estimated, many implications of such a process may be derived.
JOURNAL OF POPULATION STUDIES. 1986 Jun; (9):193-212.Population studies have been well developed in many countries of the world, but not so in Taiwan. Many academic people and general citizens in the Taiwan area are still not very familiar with the significance of population research within and outside of the nation. The purpose of this paper is to help readers understand the importance and development situation and trend of the field of population studies, so that they can be motivated to carry out population research and can become more knowledgeable of institutions and organizations both in Taiwan and abroad. Important concepts of the development and trend of population studies presented in this paper are developed by the author after many years of population study. Most sources used in this paper are secondary, and appear in various population references and documents of population organizations. The paper includes 3 main parts: the importance of population studies, the development of population studies in Taiwan, and international population research and sponsoring organizations and agencies. In the 1st part, the important need for population studies has been comprehensively discussed. In the 2nd part, discussions are extended to 3 subjects government's role on data collection and data analysis, teaching and research developments in acdemic institutions, and the role of private organizations in the promotion and application of population studies. In the 3rd part, more than 70 international institutions and agencies of population studies have been introduced and examined. Partticular attention has been paid to characteristics and functions of 3 organizations: UN Population Divisions, IUSSP, and CICRED. In addition, many other international public and private agencies in different countries have been listed and their locations mentioned. In this paper, discussion has not focused on the development of population in the US. It is because the development status in the US is unusually important and requires a separate, special report. The author has made such a report on population studies in the US a decade ago, and it will not be repeated here. (author's modified) (summary in ENG)
[National Conference on Fertility and Family, Oaxaca de Juarez, Oaxaca, April 13, 1984] Reunion Nacional sobre Fecundidad y Familia, Oaxaca de Juarez, Oax., a 13 de abril de 1984.
Mexico City, Mexico, CONAPO, 1984. 228 p.Proceedings of a national conferences on the family and fertility held in April 1984 as part of Mexico's preparation for the August 1984 World Population Conference are presented. 2 opening addresses outline the background and objectives of the conference, while the 1st paper details recommendations of a 1983 meeting on fertility and the family held in New Delhi. The main body of the report presents 2 conference papers and commentary. The 1st paper, on fertility, contraception, and family planning, discusses fertility policies; levels and trends of fertility in Mexico from 1900 to 1970 and since 1970; socioeconomic and geographic fertility differentials; the relationship of mortality and fertility; contraception and the role of intermediate variables; the history and achievements of family planning activities of the private and public sectors in Mexico; and the relationship between contraception, fertility, and family planning. The 2nd paper, on the family as a sociodemographic unit and subject of population policies, discusses the World Population Plan of Action and current sociodemographic policies in Mexico; the family as a sociodemographic unit, including the implications of formal demography for the study of family phenomena, the dynamic sociodemographic composition of the family unit, and the family as a mediating unit for internal and external social actions; and steps in development of a possible population policy in which families would be considered an active part, including ideologic views of the family as a passive object of policy and possible mobilization strategies for families in population policies. The conference as a whole concluded by reaffirming the guiding principles of Mexico's population policy, including the right of couples to decide the number and spacing of their children, the fundamental objective of the population policy of elevating the socioeconomic and cultural level of the population, the view of population policy as an essential element of development policy, and the right of women to full participation. Greater efforts were believed to be necessary in such priority areas as integration of family planning programs with development planning and population policy, creation of methodologies for the analysis of families in their social contexts, development and application of contraceptive methodologies, promotion of male participation in family planning, coordination of federal and state family planning programs, and creation of sociodemographic information systems to ensure availability of more complete date on families in specific population sectors. The principles of the World Population Plan of Action were also reaffirmed.
Report on the evaluation of UNFPA assistance to the strengthening of the civil registration and vital statistics system in Sierra Leone: project SIL/79/P03.
New York, New York, United Nations Fund for Population Activities [UNFPA], 1984 Dec. x, 28 p.While Sierra Leone has a long tradition in registering births and deaths, dating back to the mid-1880s, registration has remained low. In order to improve registration coverage, the original project formulated in 1979 by the government included 3 immediate objectives; the strengthening of the civil registration system in a model area, the experimentation with field organization procedures most suitable for the registration system in the country, and the production of estimates of demographic variables in the model area and in the rest of the country. In the Tripartite Project Review held in 1981, 2 additional objectives were added to the project; the unification of the civil registration laws, including the provision of a uniform and universal legislation for the entire country, and the reorganization and training of the registration hierarchy. While the strategy to use a model area for the development was a sound one, without the law being enacted, new forms and registers could not be printed and thus few of the planned activities could take place. Of the 5 immediate objectives of the project, only one has been achieved--the passage of the Act of 1983 which provides the legal framework for registration to take place nationwide under the new system. Little progress has been made in the achievement of the 4 remaining objectives. The Evaluation Mission made recommendations concerning the need to reformulate the extension document early in 1985, taking into account the results of the Evaluation Mission, the concentration of government action on registration in the non-model areas, and thereafter the gradual expansion of registration to adjacent areas where more complete coverage is possible.
In: Population prospects in developing countries: structure and dynamics, edited by Atsushi Otomo, Haruo Sagaza, and Yasuko Hayase. Tokyo, Japan, Institute of Developing Economies, 1985. 39-57, 326-7. (I.D.E. Statistical Data Series No. 46)A comparative study on mortality trends of developing countries was conducted by making use of UN projections of mortality measures. These mortality measures projected by the UN were used to observe future prospects of general mortality trends in selected countries. Under several research projects of the Institute of Developing Economies (IDE), some attempts were made to analyze recent trends of cause-specific mortality covering several selected countries. Estimates of future changes in cause-specific mortality may be considered useful to supply basic information needed for social and economic development planning of a country. Trends of mortality changes in the 1950s and 1960s were characterized in many countries by a rapid decline. Such a declining trend of mortality was brought about initially by a successful control of infectious and parasitic diseases accompanied by improvements in living conditions of the people in general. Thus the mortality of less developed countries that had been affected to a greater extent directly by infectious and parasitic diseases could be improved more drastically at such a stage. After the 1970s the pace of decline in mortality slowed down gradually to a considerable extent all over the world but was more prominent among more developed countries. In most countries mentioned in this discussion, regardless of whether they are more or less developed, the crude death rate is expected to reach the lowest level within a few decades. In many instances of developing countries, the crude death rate is assumed to reach such a minimum level in and around 2000. After reaching the lowest level, the crude death rate will turn to increase in varying degrees. Such a rise in crude death rate does not imply deterioration of mortality conditions. The crude death rate is often affected by the sex-age composition of the population. In contrast to the crude death rate, in most countries selected here, the expectation of life at birth is expected to expand steadily towards the future during the whole duration of this projection. An analytical observation was made on the cause-specific mortality for 10 selected countries covering the period from 1970 to the latest year for which basic data were available on the 8th (1965) revision of International Statistical Classification. Future prospects of cause structure of deaths will be very much influenced by proccesses effected by policy making and planning, and projections of cause-specific mortality should be made with an aim toward providing useful information for policy making and planning for national development.
In: Mortality and health policy. Proceedings of the Expert Group on Mortality and Health Policy, Rome, 30 May to 3 June 1983, [compiled by] United Nations. Department of International Economic and Social Affairs. New York, New York, United Nations, 1984. 270-88. (International Conference on Population, 1984; ST/ESA/SER.A/91)This paper reviews the technical cooperation efforts undertaken by the United Nations Department of Technical Cooperation for Development (DTCD) to help combat the high mortality levels in developing countries and to evolve policies in response to the World Population Plan of Action. Although the transfer of medical technology and the provision of drugs and other medical supplies remain important means of controlling death and disease, there is growing recognition of the need to develop national skills to deal with mortality, to maintain a continuous record of mortality and morbidity levels and their response to ameliorative programs, and to analyze the interrelationships between demographic, health, and socioeconomic variables. DTCD has focused on data collection and analysis, the integration of research findings into population policy formulation, and training and skill development to facilitate self-reliance. However, the lack of regular mechanisms for coordinating the activities of the various United Nations agencies that play a role in in technical cooperation in the areas of mortality and health policy has been a serious limitation. Another problem has been the dearth of tested alternative techniques for conducting simple health surveys whose results could be used in planning. Closer cooperation between United Nations agencies in this field is urged. It is also important that the recent reassignment of a low priority to data collection and analysis on the part of the United Nations Development Program be reversed. Unless data collection, analysis, and evaluation are reassigned a high priority, planners will be forced to depend on subjective judgments to evolve mortality policies. Finally, technical cooperation activities that aim to integrate mortality and morbidity control into population policies must be responsive to human rights.
In: United Nations. Department of International Economic and Social Affairs. Population projections: methodology of the United Nations. Papers of the United Nations Ad Hoc Expert Group on Demographic Projections, United Nations Headquarters, 16-19 November 1981. New York, United Nations, 1984. 15-6. (Population Studies No. 83; ST/ESA/SER.A/83)As the UN demographic estimates and projections cover all the developed and developing countries, special problems are encountered in data collection and evaluations. The responsibility for the UN projections rests primarily with the Population Division, but the results are the product of collaboration by all responsible offices within the UN system. This is 1 of the strengths of the UN population projections, yet there are numerous problems concerning those projections. Aside from the perpetual difficulties with collection and estimation of basic demographic indicators from incomplete data, all of which must be continuously undertaken, there are 8 major problems which have become more important in recent years and concern the current UN demographic projections. The 1st problem is the question of meeting the needs of the users who are the researchers, the planners, and the policymakers. The 2nd problem is that significant improvement can be made in the methodologies with, on the 1 hand, the prodigious advances in calculation devices and research techniques and on the other, a better knowledge of the economic and social context of demographic variables. The 3rd major problem in the component method of projections of fertility, which continues to be the most influential component to the future population of most nations. Another component of projection, mortality, has become a pressing issue in the field of projection as well. Knowledge of mortality in the third world is highly fragmentary. The 5th problematic issue is urbanization and city growth. There are severe problems with data comparability and projection methods. Sixth, for several developing and developed countries international migration plays a significant role in their population growth. More problematic than estimating the current net numbers of migrants is formulating assumptions about future patterns of international migration. Seventh, thus far demographic projections have largely been based on the demographic theory of transition, which appears to continue to be useful for developing countries. Yet, the demographic transition models are affected by a wider variety of trajectories than anticipated. Finally, no one has been able to explain clearly the major simultaneous movements of fertility of the developed countries. The question of obvious policy significance is what will happen in the future.
Technical co-operation in population programmes in Africa since the 1974 World Population Conference.
[Unpublished] 1983 Sep. 16. 5 p. (E/ECA/POP/7 International Conference on Population, 1984; Papers)This paper reviews the technical assistance provided to African countries since the 1974 World Population Conference in Bucharest, Romania by the United Nations Department of Technical Cooperation for Development (DTCD) in the fields of demographic training, data evaluation and analysis, and incorporation of population factors in development planning. The paper focuses on the substantive aspects of the technical cooperation provided to African countries in these areas from 1974 to 1983. The cooperation was provided essentially in response to the expressed needs and requests of member states for developing their national capabilities to undertake data analysis and evaluation and to use the results to formulate appropriate population policies and implement them as part of national development programs. The ultimate goal is to improve national capacities in these fields so that countries may achieve self reliance in handling their population programs. Almost without exception, the United Nations Fund for Population Activities (UNFPA) has been the source of funding for DTCD executed population projects. In the area of demographic training, the training needs, especially from the priority countries in Africa, have yet to be fully met and in all countries there still remains the need for short term training in special demographic expertise and an exchange of interregional experiences. In the area of demographic evaluation and analysis, greater support is required for evaluation and analysis of relevant demographic phenomena, e.g. internal and international migration and the utilization of demographic software packages. Technical cooperation is needed in the areas of population and development so that emerging phenomena (e.g. population growth, especially in urban areas) can be dealt with by evolving suitable population policies and implanting these within overall national development plans. The world financial crisis has hindered the increasing trend in technical cooperation in demographic training, analysis and overall population policies and it is hoped that this situation will improve.
REVIEWS OF INFECTIOUS DISEASES. 1983 May-Jun; 5(3):452-9.This summary of the worldwide impact of measles discusses epidemiology, reported incidence, clinical severity, community attitudes toward measles, and the impact of immunization programs on measles. Measles, 1 of the most ubiquitous and persistent of human viruses, occurs regularly everywhere in the world except in very remote and isolated areas. Strains of measles virus from different counties are indistinguishable, and serum antibodies from diverse population have identical specificity. Yet, the epidemic pattern, average age at infection, and mortality vary considerably from 1 area to another and provide a contrasting picture between the developing and the developed countries. In the populous areas of the world, measles causes epidemics every 2-5 years, but in the rapidly expanding urban conglomerations in the developing world, the continuous immigration from the rural population provides a constant influx of susceptible individuals and, in turn, a sustained occurrence of measles and unclear epidemic curves. In the economically advanced nations, measles epidemics are closely tied to the school year, building up to a peak in the late spring and ceasing abruptly after the summer recess begins. Maternal antibody usually confers protection against measles to infants during the 1st few months of life. The total number of cases of measles reported to WHO for 1980 is 2.9 million. Considering that in the developing world alone almost 100 million infants are born yearly, that less than 20% of them are immunized against measles, and that various studies indicate that almost all nonimmunized children get measles, less than 3 million cases of measles in 1980 is a gross underestimate. There was adecrease in the global number of reported cases of measles during the 1979-80 period due primarily to the reduction in the number of cases in the African continent and, to a lesser extent, in Europe. It is premature to conclude that such a reported decline is real and that it reflects the beginning of a longterm trend. The contrast between the developed and the developing worlds is most marked in relation to the severity and outcome of measles. Case fatality rates of more than 20% have been reported from West Africa. It has been estimated that 900,000 deaths occur yearly in the developing world because of measles, but data available to WHO indicate that the global case fatality rate in the developing world approaches 2% (in contrast to 2/10,000 cases in the US), and the actal mortality may be greater than 1.5 million deaths per year. The advent of WHO's Expanded Program on Immunization has brought about an awareness of the measles problem. Whenever and wherever measles vaccine has been used effectively on a large scale, a marked reduction in the number of cases has been recorded.