TY  - RPRT
        AU  - Götte, Lorenz
AU  - Stutzer, Alois
        TI  - Blood Donations and Incentives: Evidence from a Field Experiment
        PY  - 2008/Jul/
        PB  - Institute of Labor Economics (IZA)
        CY  - Bonn
        T2  - IZA Discussion Paper
        IS  - 3580
        UR  - https://www.iza.org/index.php/publications/dp3580
        AB  - There is a longstanding concern that material incentives might undermine prosocial motivation, leading to a decrease in blood donations rather than an increase. This paper provides an empirical test of how material incentives affect blood donations in a large-scale field experiment spanning three months and involving more than 10,000 previous donors. We examine two types of incentive: a lottery ticket and a free cholesterol test. Lottery tickets significantly increase donations, in particular among less motivated donors. The cholesterol test leads to no discernable impact on usable blood donations. If anything, it creates a small negative selection effect in terms of donations that must be discarded.
        KW  - material incentives
KW  - blood donations
KW  - prosocial behavior
KW  - field experiment
        ER  -