10.17608/k6.auckland.9848384.v1
Michael Dorman
Michael
Dorman
Tal Svoray
Tal
Svoray
Itai Kloog
Itai
Kloog
How does socio-economic and demographic dissimilarity determine physical and virtual segregation?
The University of Auckland
2019
followers
mobility
network
spatial segregation
Twitter
Geospatial Information Systems
2019-09-16 07:00:56
Conference contribution
https://auckland.figshare.com/articles/conference_contribution/How_does_socio-economic_and_demographic_dissimilarity_determine_physical_and_virtual_segregation_/9848384
It is established that socio-economic and demographic dissimilarities between populations are determinants of spatial segregation. However, the understanding of how such dissimilarities translate into actual segregation is limited. We propose a novel network-analysis approach to comprehensively study the determinants of communicative and mobility-related spatial segregation, using geo-tagged Twitter data. Weighted spatial networks representing tie strength between geographical areas are constructed, followed by tie formation modelling as a function of socio-economic and demographic dissimilarity between areas. Physical and virtual tie formation were affected by income, age and race differences, although these effects were smaller by an order of magnitude than the distance effect. Tie formation was more frequent when ‘destination’ area had higher median income and lower median age. We hypothesise that physical tie formation is more ‘costly’ than a virtual one, resulting in stronger segregation in the physical world. Economic and cultural motives may result in stronger segregation of relatively rich and young populations from their surroundings. Our methodology can help identify types of states that lead to spatial segregation, and thus guide planning decisions for reducing its adverse effects.