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Fields Changed

Registration

Field Before After
Study Withdrawn No
Intervention Completion Date December 14, 2019
Data Collection Complete Yes
Final Sample Size: Number of Clusters (Unit of Randomization) 698
Was attrition correlated with treatment status? No
Final Sample Size: Total Number of Observations 698 municipalities
Final Sample Size (or Number of Clusters) by Treatment Arms Placebo control: 225 FB message + No Letter to politicians: 161 FB message + Letter to politicians: 312
Public Data URL https://www.openicpsr.org/openicpsr/project/160921/version/V1/view
Is there a restricted access data set available on request? No
Program Files Yes
Program Files URL https://www.openicpsr.org/openicpsr/project/160921/version/V1/view
Data Collection Completion Date August 30, 2021
Is data available for public use? Yes
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Papers

Field Before After
Paper Abstract Can information and communication technologies help citizens monitor their elections? We analyze a large-scale field experiment designed to answer this question in Colombia. We leveraged Facebook advertisements sent to over 4 million potential voters to encourage citizen reporting of electoral irregularities. We also cross-randomized whether candidates were informed about the campaign in a subset of municipalities. Total reports, and evidence-backed ones, experienced a large increase. Across a wide array of measures, electoral irregularities decreased. Finally, the reporting campaign reduced the vote share of candidates dependent on irregularities. This light-touch intervention is more cost-effective than monitoring efforts traditionally used by policymakers.
Paper Citation Garbiras-Díaz, Natalia, and Mateo Montenegro. 2022. "All Eyes on Them: A Field Experiment on Citizen Oversight and Electoral Integrity." American Economic Review, 112 (8): 2631-68
Paper URL https://www.aeaweb.org/articles?id=10.1257/aer.20210778
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