Information provision, voter coordination, and electoral accountability: Evidence from Mexican social networks

Eric Arias*, Pablo Balán, Horacio Larreguy, John Marshall, Pablo Querubín

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


How do social networks moderate the way political information influences electoral accountability? We propose a simple model in which incumbent malfeasance revelations can facilitate coordination around less malfeasant challenger parties in highly connected voter networks, even when voters update favorably about incumbent party malfeasance. We provide evidence from Mexico of this mechanism by leveraging a field experiment in a context where the provision of incumbent malfeasance information increased support for incumbent parties, despite voters continuing to believe that challengers were less malfeasant than incumbents. Combining this experiment with detailed family network data, we show that-consistent with the model-the increase in incumbent party vote share due to information provision was counteracted by coordination around less malfeasant challengers in precincts with greater network connectedness. Individual-level data further demonstrate that networks facilitated explicit and tacit coordination among voters. These findings suggest that networks can help voters coordinate around information to help remove poorly performing politicians.

Original languageEnglish
Pages (from-to)475-498
Number of pages24
JournalAmerican Political Science Review
Issue number2
StatePublished - 1 May 2019
Externally publishedYes


FundersFunder number
Harvard Forest, Harvard University15-1068
New York University15-10587


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