Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/165993 
Year of Publication: 
2017
Series/Report no.: 
cege Discussion Papers No. 318
Publisher: 
University of Göttingen, Center for European, Governance and Economic Development Research (cege), Göttingen
Abstract: 
Recent evidence suggests that nudges, i.e. alterations in the decisional context, can have large effects on decisions and can improve individual and public welfare. This paper presents the results of a controlled experiment that was designed to evaluate not only the effectiveness of a default manipulation on decision making in a charity giving context, but also whether yielding or opposing a nudge affects attitudes, and whether nudging intentions (pledges) translate into behaviour (donations). The results show that while making pledges the default increased pledges, it did not increase donations because the nudge affected only participants who were close to indifference between pledging and not pledging and were thus unlikely to actually do the effort of translating their pledges into donations. Participants who were nudged to pledge pledged more often than participants who were nudged to keep, but they were less likely to maintain their participation in the experiment, and those who kept participating were less likely to pledge again. This, along with high attrition among nudged pledgers explains why nudging pledges did not result in higher actual donations. We interpret our findings in terms of a selection effect of nudges, and discuss practical implications of our experiment in terms of the applicability of default-based nudges as a tool for policy interventions.
Subjects: 
attitudes
decision making
charity giving
defaults
intentions
nudges
pro-social behaviour
selection effect
JEL: 
C9
D04
D10
D64
H41
Document Type: 
Working Paper

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