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On Reminder Effects, Drop-Outs and Dominance: Evidence from an Online Experiment on Charitable Giving

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  • Axel Sonntag
  • Daniel John Zizzo

Abstract

We present the results of an experiment that (a) shows the usefulness of screening out drop-outs and (b) tests whether different methods of payment and reminder intervals affect charitable giving. Following a lab session, participants could make online donations to charity for a total duration of three months. Our procedure justifying the exclusion of drop-outs consists in requiring participants to collect payments in person flexibly and as known in advance and as highlighted to them later. Our interpretation is that participants who failed to collect their positive payments under these circumstances are likely not to satisfy dominance. If we restrict the sample to subjects who did not drop out, but not otherwise, reminders significantly increase the overall amount of charitable giving. We also find that weekly reminders are no more effective than monthly reminders in increasing charitable giving, and that, in our three months duration experiment, standing orders do not increase giving relative to one-off donations.

Suggested Citation

  • Axel Sonntag & Daniel John Zizzo, 2015. "On Reminder Effects, Drop-Outs and Dominance: Evidence from an Online Experiment on Charitable Giving," PLOS ONE, Public Library of Science, vol. 10(8), pages 1-17, August.
    • Handle: RePEc:plo:pone00:0134705
    DOI: 10.1371/journal.pone.0134705
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    11. Dustan, Andrew & Maldonado, Stanislao & Hernandez-Agramonte, Juan Manuel, 2018. "Motivating bureaucrats with non-monetary incentives when state capacity is weak: Evidence from large-scale field experiments in Peru," MPRA Paper 90952, University Library of Munich, Germany.
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    14. Knowles, Stephen & Servátka, Maroš & Sullivan, Trudy, 2016. "Deadlines, Procrastination, and Inattention in Charitable Tasks: A Field Experiment," MPRA Paper 69621, University Library of Munich, Germany.
    15. Johannes Gessner & Wolfgang Habla & Ulrich J. Wagner, 2023. "Can Social Comparisons and Moral Appeals Induce a Modal Shift Towards Low-Emission Transport Modes?," CRC TR 224 Discussion Paper Series crctr224_2023_451, University of Bonn and University of Mannheim, Germany.
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    More about this item

    JEL classification:

    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • D64 - Microeconomics - - Welfare Economics - - - Altruism; Philanthropy; Intergenerational Transfers
    • L31 - Industrial Organization - - Nonprofit Organizations and Public Enterprise - - - Nonprofit Institutions; NGOs; Social Entrepreneurship

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