Who Ties the World Together? Evidence from a Large Online Social Network

  • Guanghua ChiEmail author
  • Bogdan State
  • Joshua E. Blumenstock
  • Lada Adamic
Conference paper
Part of the Studies in Computational Intelligence book series (SCI, volume 882)


Social ties form the bedrock of the global economy and international political order. Understanding the nature of these ties is thus a focus of social science research in fields including economics, sociology, political science, geography, and demography. Yet prior empirical studies have been constrained by a lack of granular data on the interconnections between individuals; most existing work instead uses indirect proxies for international ties such as levels of international trade or air passenger data. In this study, using several billion domestic and international Facebook friendships, we explore in detail the relationship between international social ties and human mobility. Our findings suggest that long-term migration accounts for roughly 83% of international ties on Facebook. Migrants play a critical role in bridging international social networks.


Migration Social networks Big data 


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Guanghua Chi
    • 1
    Email author
  • Bogdan State
    • 2
  • Joshua E. Blumenstock
    • 1
  • Lada Adamic
    • 2
  1. 1.School of InformationU.C. BerkeleyBerkeleyUSA
  2. 2.FacebookMenlo ParkUSA

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