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The International-Migration Network

Author

Listed:
  • Giorgio Fagiolo
  • Marina Mastrorillo

Abstract

This paper studies international migration from a complex-network perspective. We define the international-migration network (IMN) as the weighted-directed graph where nodes are world countries and links account for the stock of migrants originated in a given country and living in another country at a given point in time. We characterize the binary and weighted architecture of the network and its evolution over time in the period 1960-2000. We find that the IMN is organized around a modular structure characterized by a small-world pattern displaying disassortativity and high clustering, with power-law distributed weighted-network statistics. We also show that a parsimonious gravity model of migration can account for most of observed IMN topological structure. Overall, our results suggest that socio-economic, geographical and political factors are more important than local-network properties in shaping the structure of the IMN.

Suggested Citation

  • Giorgio Fagiolo & Marina Mastrorillo, 2012. "The International-Migration Network," LEM Papers Series 2012/23, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
    • Handle: RePEc:ssa:lemwps:2012/23
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    Cited by:

    1. Mihaela Peres & Helian Xu & Gang Wu, 2016. "Community Evolution in International Migration Top1 Networks," PLOS ONE, Public Library of Science, vol. 11(2), pages 1-20, February.

    More about this item

    Keywords

    Migration; Complex Networks; International Migration Network; Community Detection; Gravity Models;
    All these keywords.

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