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Blood Donations and Incentives: Evidence from a Field Experiment
Discussion paper / Internet publication
ID 4517137
Author(s) Goette, Lorenz; Stutzer, Alois
Author(s) at UniBasel Stutzer, Alois
Year 2019
Month and day 11-13
Year: comment 2019
Title Blood Donations and Incentives: Evidence from a Field Experiment
Series title WWZ Working Paper
Volume 2019
Number 20
Pages 56
Publisher / Institution WWZ
Keywords blood donations, field experiment, material rewards, motivation crowding effect, pro-social behavior

There is a longstanding concern that material rewards might undermine pro-social motivations, thereby leading to a decrease in blood donations. This paper provides an empirical test of how material rewards affect blood donations in a three-month large-scale field experiment and a fifteen-month follow-up period, involving more than 10,000 previous donors. We examine the efficacy of a lottery ticket as a reward vis-ŗ-vis a standard invitation, an appeal, and a free cholesterol test. The offer of a lottery ticket, on average, increases the probability to donate blood during the experiment by 5.6 percentage points over a baseline donation rate of 46 percent. We find that this effect is driven by less motivated donors. Moreover, no reduction in donations is observed after the experiment.

Full Text on edoc Available
ISI-Number WOS:000329273600027

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