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"Facta Non Verba": an experiment on pledging

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.inrae.fr/hal-02799567
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Submitted on : Friday, June 5, 2020 - 5:54:13 PM
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  • HAL Id : hal-02799567, version 1
  • PRODINRA : 338629

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Gilles Grolleau, Guillermo Mateu, Angela Sutan, Radu Vranceanu. "Facta Non Verba": an experiment on pledging. 2015. ⟨hal-02799567v1⟩

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