Urban characteristics attributable to density-driven tie formation
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Pentland_Urban characteristics.pdf
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Author(s)
Pan, Wei
Ghoshal, Gourab
Cebrian, Manuel
Pentland, Alex Paul
Krumme, Katherine Ann
Date Issued
June 2013
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Pan, Wei, Gourab Ghoshal, Coco Krumme, Manuel Cebrian, and Alex Pentland. “Urban Characteristics Attributable to Density-Driven Tie Formation.” Nature Communications 4 (June 4, 2013).
Version
Author's final manuscript
Abstract
Motivated by empirical evidence on the interplay between geography, population density and societal interaction, we propose a generative process for the evolution of social structure in cities. Our analytical and simulation results predict both super-linear scaling of social-tie density and information contagion as a function of the population. Here we demonstrate that our model provides a robust and accurate fit for the dependency of city characteristics with city-size, ranging from individual-level dyadic interactions (number of acquaintances, volume of communication) to population level variables (contagious disease rates, patenting activity, economic productivity and crime) without the need to appeal to heterogeneity, modularity, specialization or hierarchy.
MIT Department
Massachusetts Institute of Technology. Media Laboratory
Program in Media Arts and Sciences (Massachusetts Institute of Technology)
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1038/ncomms2961
