Partisan Interactions: Evidence from a Field Experiment in the United States

99 Pages Posted: 23 Apr 2014 Last revised: 12 Nov 2015

Ricardo Perez-Truglia

University of California, Los Angeles (UCLA)

Guillermo Cruces

Universidad Nacional de La Plata - Centro de Estudios Distributivos, Laborales y Sociales (CEDLAS); IZA

Date Written: November 2015

Abstract

Since campaign contributions reveal the actor’s party leanings, they take place in a domain of social observation and are likely to be subject to social effects. We conducted a field experiment to identify some of these social effects. We sent letters to 92,000 contributors from all U.S. states during the 2012 presidential election campaign. We randomized subtle details in those letters to create non-deceptive experimental variation in the probability that the recipient’s contributions were observable to her neighbors, and in the recipient’s perception of the contributions of others. We use administrative data to measure the effects of these variations on the recipients’ subsequent contributions. We show that making an individual’s contributions more visible to her neighbors increases the contributions of supporters of the local majority party, and decreases those of supporters of the minority party. This evidence is consistent with a model of partisan signaling in which individuals treat supporters of their own party favorably and supporters of the opposite party unfavorably. Additionally, we show that individuals contribute more when they perceive higher average contributions from own-party supporters in their area, but not do not react to contributions from opposite party neighbors, which is consistent with social norm theories. Last, individuals contribute lower amounts when they perceive a higher share of own-party contributors, which can be interpreted as free-riding. Taken together, the evidence suggests that partisan interactions play an important role in shaping political participation.

Keywords: social interactions, political participation, political polarization, campaign contributions, field experiment.

JEL Classification: C93, D03, D64, D71, D72, D83, H41

Suggested Citation

Perez-Truglia, Ricardo and Cruces, Guillermo, Partisan Interactions: Evidence from a Field Experiment in the United States (November 2015). Available at SSRN: https://ssrn.com/abstract=2427148 or http://dx.doi.org/10.2139/ssrn.2427148

Ricardo Perez-Truglia (Contact Author)

University of California, Los Angeles (UCLA) ( email )

405 Hilgard Avenue
Box 951361
Los Angeles, CA 90095
United States

HOME PAGE: http://www.anderson.ucla.edu/faculty/global-economics-and-management/perez-truglia

Guillermo Cruces

Universidad Nacional de La Plata - Centro de Estudios Distributivos, Laborales y Sociales (CEDLAS) ( email )

Centro de Estudios Distributivos, Laborales y
Sociales, Calle 6 e/47 y 48
La Plata, Provincia de Buenos Aires 1900
Argentina

HOME PAGE: http://cedlas.econo.unlp.edu.ar

IZA

P.O. Box 7240
Bonn, D-53072
Germany

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