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"Facta non verba" : an experiment on pledging and giving

Abstract : This paper builds an experiment to investigate whether asking people to state how much they will donate to a charity (to pledge) can increase their actual donation. Individuals’ endowment is either certain or a random variable. We study different types of pledges, namely private, public and irrevocable ones, which differ in individual cost of not keeping a promise. Public pledges appear to be associated to lower donation levels. Irrevocable pledges ensure an amount of donations equal to donations in absence of pledges. Moreover, a significant number of individuals keep their promises, in presence of either private or public pledges. A higher risk attached to the endowment increases donations.
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Preprints, Working Papers, ...
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https://hal-essec.archives-ouvertes.fr/hal-02799567
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Submitted on : Friday, July 3, 2015 - 8:24:49 AM
Last modification on : Tuesday, September 7, 2021 - 3:32:56 PM
Long-term archiving on: : Tuesday, April 25, 2017 - 11:31:54 PM

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WP1512.pdf
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  • HAL Id : hal-02799567, version 2
  • PRODINRA : 338629

Citation

Gilles Grolleau, Guillermo Mateu, Angela Sutan, Radu Vranceanu. "Facta non verba" : an experiment on pledging and giving. 2015. ⟨hal-02799567v2⟩

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