Physical partisan proximity outweighs online ties in predicting US voting outcomes

• URL: http://arxiv.org/abs/2407.12146v1
• Date: Tue, 16 Jul 2024 20:02:18 GMT
• Title: Physical partisan proximity outweighs online ties in predicting US voting outcomes
• Authors: Marco Tonin, Bruno Lepri, Michele Tizzoni,
• Abstract summary: Affective polarization and increasing social divisions affect social mixing and the spread of information across online and physical spaces. We compare three dimensions of partisan exposure: physical proximity and exposure to the same social contexts, online social ties, and residential sorting. Our results show that physical partisan proximity is the best predictor of voting patterns in swing counties, where the election results are most uncertain.
• Score: 4.479309784918059
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Affective polarization and increasing social divisions affect social mixing and the spread of information across online and physical spaces, reinforcing social and electoral cleavages and influencing political outcomes. Here, using aggregated and de-identified co-location and online network data, we investigate the relationship between partisan exposure and voting patterns in the USA by comparing three dimensions of partisan exposure: physical proximity and exposure to the same social contexts, online social ties, and residential sorting. By leveraging various statistical modeling approaches, we consistently find that partisan exposure in the physical space, as captured by co-location patterns, more accurately predicts electoral outcomes in US counties, outperforming online and residential exposures across metropolitan and non-metro areas. Moreover, our results show that physical partisan proximity is the best predictor of voting patterns in swing counties, where the election results are most uncertain. We also estimate county-level experienced partisan segregation and examine its relationship with individuals' demographic and socioeconomic characteristics. Focusing on metropolitan areas, our results confirm the presence of extensive partisan segregation in the US and show that offline partisan isolation, both considering physical encounters or residential sorting, is higher than online segregation and is primarily associated with educational attainment. Our findings emphasize the importance of physical space in understanding the relationship between social networks and political behavior, in contrast to the intense scrutiny focused on online social networks and elections.

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