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POPULATION TODAY. 1989 Jan; 17(1):6-8.The quality of data collected by the U.S. Immigration and Naturalization Service (INS) is assessed, with a focus on differences between U.S. and U.N. definitions of immigrants, emigrants, and refugees. The author suggests that "gaps in migration data collected for the U.S. limit their usefulness for studying international migration and estimating national population change. For example, no information is collected on emigration of legal permanent residents or U.S. citizens, nor is there any direct information on the immigration of U.S. citizens. Data collected on legal immigrants are based on a legal and administrative definition that often conflicts with the demographic definition of an immigrant." (EXCERPT)
Improving comparability of international migration statistics: contributions by the Conference of European Statisticians from 1971 to date.
INTERNATIONAL MIGRATION REVIEW. 1987 Winter; 21(4):1017-37.This article summarizes the 3 main types of interrelated activities which the Conference of European Statisticians has worked on to improve the measurement and international comparability of international migration flows. The work has encompassed collaborating with the UN Statistical Commission on the preparation and implementation of the revised international recommendations on statistics of international migration, organizing a regular exchange of data on immigration and emigration flows among the UN Economic Commission for Europe countries and selected countries in other regions, and conducting bilateral studies on international migration within the framework of the Conference's program of work in this field of statistics. The bulk of the work which has been carried out to date by the conference has been conducted rather anonymously and even unobtrusively by the staff of national statistical offices in Economic Commission for Europe countries; they have achieved a modest but important amount of progress during the past 15 years. There is reason to expect that further progress will be made over the next decade, particularly if national statistical offices in the region continue to undertake bilateral studies and endeavor to improve their migration statistics. However, more substantial progress could be achieved if additional countries and organizations established projects aimed at achieving these ends (author's modified).
Bangkok, Thailand, U.N. Economic and Social Commission for Asia and the Pacific, 1986. v, 148 p. (Asian Population Studies Series No. 79.)The research reports and statements by government representives contained in this volume were presented at the Policy Workshop on International Migration in Asia and the Pacific held at Bangkok from 15-21 October 1985. The workshop was the final activity of a 2-year Economic and Social Commission for Asia and the Pacific (ESCAP) project on international migration policy in Asia and the Pacific, funded by the UN Fund for Population Activities. The 2nd phase of the project includes the studies reported in this volume, which were intended to be exploratory. They were meant to assess the current state of knowledge regarding return migration and to identify critical issues that would require further investigation. 5 of the studies are concerned with return migration from temporary employment, primarily in the Middle East. Because many of the labor-sending countries of the Mediterranean basin experienced a rapid expansion of labor emigration (largely to northern and western Europe) and a contraction of the flow and increase in return migration prior to current trends in Asian labor migration, it was felt that a background paper on that experience would be value to policy makers in the ESCAP region. Migration from the Pacific sub-region of ESCAP is both of more variable duration and less heavily labor-oriented than temporary migration from Asian countries to the Middle East. The workshop's objectives were 1) to bring together researchers and policy makers to review carefully the results of the 7 studies carried out as part of the project, 2) to relate the research findings to feasible government policies for the reintegration of returning labor migrants, and 3) to make and disseminate policy recommendations to governments in the ESCAP region.
The degree of success achieved in the population projections for Latin America made since 1950: sources of error: data and studies needed in order to improve the basis for calculating projections.
In: United Nations. Dept. of Economic and Social Affairs. Proceedings of the World Population Conference, Belgrade, 30 August-10 September 1965. Vol. 3. Selected papers and summaries: projections, measurement of population trends. New York, UN, 1967. 27-33. (E/CONF.41/4)High, medium, and low population size and age-sex structure projections, prepared by the United Nations in 1954-1955 for 15 Latin American countries, were compared to recent census data in an effort to evaluate the success of the projections, to identify sources of error, and to suggest ways to improve projections in the future. For the countries as a whole, the high projections underestimated the actual population by 3.35%, the medium projections underestimated the population by 4.5%, and the low projections underestimated the population by 7%. Deviation for individual projections ranged from a 14.03% overestimation of the Peruvian population to a 15.05% underestimation of the Costa Rican population. In general, projections were considered unsuccessful except for those made for Honduras, Nicaragua, Panama, and Argentina. The projections for each country were examined and the sources of error were identified. In some cases, even though the projections were not grossly deviant from the actual population, the results were due to a series of errors which happened to cancel each other out. Errors were due either to the inappropriate use of methodological procedures or to the failure to adequately anticipate fertility, mortality, and migration trends. Errors can be minimized in the future by improving the population base data on which the projections are made. Although progress was made in improving census-taking in Latin America during the 1950s, censuses taken since 1960 have once again declined in quality. Furthermore, many countries still lack adequate vital records systems. Until the quality of the vital records and census systems is improved, sample surveys should be used to develop population base data for making projections. There is also a need to improve data gathering in reference to international migration patterns and trends.