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International Migration Report 2009

A Global Assessment

image of International Migration Report 2009

This report presents information on international migration levels, trends and legal instruments for major areas, regions and countries of the world. The data for the international migrant stock are taken from the publication Trends in International Migrant Stock: The 2008 Revision. The estimates on the total population, net migration and the projected population up to 2050 are based on World Population Prospects: The 2008 Revision. For the first time, data on international migration flows for a selected group of countries are included in the analysis. The data come from the dataset International Migration Flows to and from Selected Countries: The 2008 Revision. The analysis of the ratification status of migration-related legal instruments for Member States of the United Nations and the International Labour Organization (ILO) is based on information from the United Nations Treaty Section which can be accessed at treaties.un.org.

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International migration flows - selected countries

International migration flow data are essential to the analysis of international migration levels and trends because they document movements shortly after they have occurred whereas stock data document the cumulative effects of movements. While more recent, and thus more relevant for policy purposes, flow data are affected by limitations imposed by data availability, quality and comparability. Most data on international migration flows are available for relatively few developed countries beginning in the 1980s; few countries have complete data sets, and the data collected often suffer from definitional inconsistencies between countries as they are derived from administrative, not statistical, sources. The following section discusses international migration flows to and from developed countries. The data have been published in International Migration Flows To and From Selected Countries: The 2008 Revision (United Nations database, POP/DB/MIG/Flow/ Rev.2008).

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