Global Spatio-Temporal Patterns in Human Migration: A Complex Network Perspective
Open Access
- 23 January 2013
- journal article
- research article
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 8 (1), e53723
- https://doi.org/10.1371/journal.pone.0053723
Abstract
Migration is a powerful adaptive strategy for humans to navigate hardship and pursue a better quality of life. As a universal vehicle facilitating exchanges of ideas, culture, money and goods, international migration is a major contributor to globalization. Consisting of countries linked by multiple connections of human movements, global migration constitutes a network. Despite the important role of human migration in connecting various communities in different parts of the world, the topology and behavior of the international migration network and its changes through time remain poorly understood. Here we show that the global human migration network became more interconnected during the latter half of the twentieth century and that migrant destination choice partly reflects colonial and postcolonial histories, language, religion, and distances. From 1960 to 2000 we found a steady increase in network transitivity (i.e. connectivity between nodes connected to the same node), a decrease in average path length and an upward shift in degree distribution, all of which strengthened the ‘small-world’ behavior of the migration network. Furthermore, we found that distinct groups of countries preferentially interact to form migration communities based largely on historical, cultural and economic factors.Keywords
This publication has 35 references indexed in Scilit:
- On the temporal variability of the virtual water networkGeophysical Research Letters, 2012
- Structure and controls of the global virtual water trade networkGeophysical Research Letters, 2011
- Finding Statistically Significant Communities in NetworksPLOS ONE, 2011
- Uncovering space-independent communities in spatial networksProceedings of the National Academy of Sciences of the United States of America, 2011
- Spatial networksPhysics Reports, 2011
- Empirical Evidence for Impacts of Internal Migration on Vegetation Dynamics in China from 1982 to 2000Sensors, 2008
- Exploring the link between climate change and migrationClimatic Change, 2008
- Complex networks: Structure and dynamicsPhysics Reports, 2006
- An Experimental Study of the Small World ProblemSociometry, 1969
- An Economic Analysis of Internal Migration in BrazilJournal of Political Economy, 1968