Tweeting Over The Border: An Empirical Study of Transnational Migration in San Diego and Tijuana
Victor R. Martinez, Antonio Mancilla, Victor M. Gonzalez

TL;DR
This study uses geo-located Twitter data to empirically analyze transnational migration patterns between San Diego and Tijuana, revealing a transnational community structure that transcends borders.
Contribution
It introduces a novel, scalable method leveraging social media data to study human mobility and transnational migration, complementing traditional sociological approaches.
Findings
Identified a transnational community structure across the border.
Demonstrated the formation of a functional metropolitan area.
Showed the potential of social media data for sociological research.
Abstract
Sociological studies on transnational migration are often based on surveys or interviews, an expensive and time consuming approach. On the other hand, the pervasiveness of mobile phones and location aware social networks has introduced new ways to understand human mobility patterns at a national or global scale. In this work, we leverage geo located information obtained from Twitter as to understand transnational migration patterns between two border cities (San Diego, USA and Tijuana, Mexico). We obtained 10.9 million geo located tweets from December 2013 to January 2015. Our method infers human mobility by inspecting tweet submissions and user's home locations. Our results depict a trans national community structure that exhibits the formation of a functional metropolitan area that physically transcends international borders. These results show the potential for re analysing sociology…
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Taxonomy
TopicsHuman Mobility and Location-Based Analysis · Urban, Neighborhood, and Segregation Studies · Migration and Labor Dynamics
