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International Migrant Stocks, Mid-Year 2020

International migrant stocks

International migrant stocks are estimates of "the total number of international migrants present in a given country at a particular point in time" (UN SD, 2017: 9). United Nations (UN) data on these sto...
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Migration data sources

The demands for migration data arising from the 2030 Agenda for Sustainable Development have prompted the international statistical community to review the use of traditional sources for migration data, such as po...

Big data, migration and human mobility

The term "big data" includes anonymized data that are generated by users of mobile devices, internet-based platforms, or by digital sensors and meters, for example, satellite imagery. With about 5.16 billion uniqu...
Missing Migrants: Causes of deaths and disappearances during transit worldwide, by region, 2014 - 2023

Migrant deaths and disappearances

Since 2014, more than 4,000 fatalities have been recorded annually on migratory routes worldwide. 2023 marked the deadliest year with more than 8,000 deaths recorded, marking a decade of documenting migrant deaths...

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Toolkit on International Migration

Provides an overview of basic definitions, concepts and sources for statistics on international migration, a summary of key messages, a quick guide to migration data and suggestions for further reading. This docum...
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International Migration Statistics: Meeting the International Recommendations

This training toolkit, developed by Ann Singleton (University of Bristol/GMDAC/IOM) for the United Nations Economic and Social Commission for Western Asia (ESCWA), focuses on improving data collection in countries...
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Measuring International Skilled Migration: New Estimates Controlling for Age of Entry

The authors aim to improve 'brain drain,' or skilled emigration, data sets by taking into account whether migrants to OECD countries attained their education or training in the home or destination country by using...
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Informing Migration Policies: A Data Primer

The article offers an overview of key definitions, methods, and sources for readers new to the field of migration data and research. Also included is how different data sources might be manipulated to answer commo...

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