| Field | Before | After |
|---|---|---|
| Field Study Withdrawn | Before | After No |
| Field Intervention Completion Date | Before | After August 09, 2017 |
| Field Data Collection Complete | Before | After Yes |
| Field Final Sample Size: Number of Clusters (Unit of Randomization) | Before | After 2828 activists |
| Field Was attrition correlated with treatment status? | Before | After No |
| Field Final Sample Size: Total Number of Observations | Before | After 2828 activists |
| Field Final Sample Size (or Number of Clusters) by Treatment Arms | Before | After 1411 activists in the own treatment, 1417 in the other party treatment. |
| Field Public Data URL | Before | After https://doi.org/10.5281/zenodo.7663389 https://doi.org/10.7910/DVN/2KLNFX |
| Field Is there a restricted access data set available on request? | Before | After No |
| Field Program Files | Before | After Yes |
| Field Program Files URL | Before | After https://doi.org/10.5281/zenodo.7663389 https://doi.org/10.7910/DVN/2KLNFX |
| Field Data Collection Completion Date | Before | After November 29, 2017 |
| Field Is data available for public use? | Before | After Yes |
| Field | Before | After |
|---|---|---|
| Field Paper Abstract | Before | After How does a citizen’s decision to participate in political activism depend on the participation of others? We conduct a nationwide natural field experiment in collaboration with a major European party during a recent national election. In a party survey, we randomly provide canvassers with true information about the canvassing intentions of their peers. When learning that more peers participate in canvassing than previously believed, canvassers significantly reduce both their canvassing intentions and behaviour. An additional survey among party supporters underscores the importance of free-riding motives and reveals that there is strong heterogeneity in motives underlying supporters’ behavioural responses. Democracies |
| Field Paper Citation | Before | After Hager, A., Hensel, L., Hermle, J., & Roth, C. (2023). Political Activists as Free-Riders: Evidence from a Natural Field Experiment. The Economic Journal, 133(653), 2068–2084. |
| Field Paper URL | Before | After https://doi.org/10.2139/ssrn.3671244 |
| Field | Before | After |
|---|---|---|
| Field Paper Abstract | Before | After Does party competition affect political activism? This paper studies the decision of party supporters to join political campaigns. We present a framework that incorporates supporters’ instrumental and expressive motives and illustrates that party competition can either increase or decrease party activism. To distinguish between these competing pre- dictions, we implemented a field experiment with a European party during a national election. In a seemingly unrelated party survey, we randomly assigned 1,417 party supporters to true information that the canvassing activity of the main competitor party was exceptionally high. Using unobtrusive, real-time data on party supporters’ canvassing behavior, we find that respondents exposed to the high-competition treatment are 30% less likely to go canvassing. To investigate the causal mechanism, we leverage additional survey evidence collected two months after the campaign. Consistent with affective accounts ofpolitical activism, we show that increased competition lowered party supporters’ political self-efficacy, which plausibly led them to remain inactive. |
| Field Paper Citation | Before | After Hager, A., Hermle, J., Hensel, L., & Roth, C. (2021). Does Party Competition Affect Political Activism? Journal of Politics, 83(4), 1681–1694. |
| Field Paper URL | Before | After https://doi.org/10.1086/712140 |