Success-Breeds-Success in Collective Political Behavior: Evidence from a Field Experiment

Arnout van de Rijt, Idil Afife Akin, Robb Willer, Matthew Feinberg

Sociological Science, October 31, 2016
DOI 10.15195/v3.a41

Abstract

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Scholars have proposed that the emergence of political movements is highly pathdependent, such that early mobilization successes may lead to disproportionately greater eventual success. This article replicates a unique field experiment testing for positive feedback in internet petition signing (van de Rijt et al. 2014). The prior study found no significant effect of signatures bestowed by the experimenters on the signing rate of 200 online petitions posted to a political petitions website (http://www.change.org), but this may have lacked power because of its sample size and variation across petitions. We report on results of a new field experiment in which we posted 400 petitions differing only in tightly controlled ways to the same website, varying the number of experimentally bestowed signatures across a wider range than in the original experiment. Subsequent petition signing increased monotonically with the treatment, confirming the presence of positive feedback. These results support the existence of success-breeds-success dynamics in the mobilization of collective political behavior, confirming that early success can increase the attractiveness of collective action to potential supporters. However, while significant, the effect of prior signatures was small, suggesting that cumulative advantage effects resulting from popularity metrics may play a minor role in collective action outcomes.

Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
Arnout van de Rijt: Department of Sociology, Utrecht University; Department of Sociology, Stony Brook University; Institute for Advanced Computational Science, Stony Brook University
Email: arnoutvanderijt@gmail.com

Idil Afife Akin: Department of Sociology, Stony Brook University
Email: idilakin@gmail.com

Robb Willer: Department of Sociology, Stanford University
Email: willer@stanford.edu

Matthew Feinberg: Rotman School of Management, University of Toronto
Email: matthewfeinberg1@gmail.com

Acknowledgements: We thank the editors and consulting editors for helpful feedback on our initial manuscript, Crystal Redekopp and Michael Claffey for their organizational and technical support of the experiment, and the http://www.change.org team for allowing and hosting our experiment. This work was supported by National Science Foundation grant SES-1340122 (to A.v.d.R.).

  • Citation: van de Rijt, Arnout, Idil Afife Akin, Robb Willer, and Matthew Feinberg. 2016. “Success-Breeds-Success in Collective Political Behavior: Evidence from a Field Experiment.” Sociological Science 3: 940-950.
  • Received: August 17, 2016
  • Accepted: September 26, 2016
  • Editors: Delia Baldassarri
  • DOI: 10.15195/v3.a41

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