Estimating and Visualising Migration Flow Data
Nikola Sander1, Guy Abel1, Ramon Bauer1 & Johannes Schmidt2
1Wittgenstein Centre | Vienna Institute of Demography
2Null2, Berlin
Migration & Development Conference, June 2014
View the slides at http://nikolasander.github.io/oxford
Global migration has accelerated and diversified!
In the age of globalisation, migration has become:
...more intense
...less spatially focussed
...less unidirectional
Limited empirical testing of these assumptions!
Largely due to a lack of global flow data.
So, what data are available on global migration flows?
Most widely available are data on migrant stocks
Captured in censuses, registers and surveys
Comparing country of birth with country of current residence
Complete and harmonised datasets published by UN (1990-2010) and World Bank (1960-2000)
An accumulative measure of migration over several decades that cannot capture contemporary trends!
Migrant flow data much less widely available
Censuses only capture inflows, registers use varying definitions
Harmonisation exist for European flows (IMEM)
Outside Europe only unharmonised data for selected countries
Estimating flows from stocks
|
UN bilateral stock data lifetime transitions 1990, 2000, 2010 more than 200 countries |
➜ |
New global flow estimates 5-year transitions 1990-95 to 2005-10 196 countries |
A hypothetical migrant stock table for 4 countries, 2000
A hypothetical migrant stock table for 4 countries, 2000 & 2010
A hypothetical migrant stock table for 4 countries, 2000 & 2010
A hypothetical migrant stock table for 4 countries, 2000 & 2010
From stocks to flows
From stocks to flows
Estimated flow matrix
Estimated global flow matrix for 196 countries
The Emigrants of the World, 1858.
by Charles Joseph Minard
Conventional flow map
Migration within and between world regions in
1990-1995
Migration within and between world regions in
1995-2000
Migration within and between world regions in
2000-2005
Migration within and between world regions in
2005-2010
Intensity of global migration flows, 1990-2010
Total migrants in mio.
|
Crude migration rate |
Crude migration rate
North America
|
Europe
|
West & South Asia
|
Africa
|
"The Global Flow of People" www.global-migration.info
Visualising remittances flows
Guy Abel & Nikola Sander (2014): Quantifying Global International Migration Flows. Science, Vol. 343, pp.1520-22.
Download the flow estimates, 1990-2010.
Interactive data visualisation"The Global Flow of People"
Contact
nikola.sander@oeaw.ac.at
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