%0 Report
        %A Götte, Lorenz
%A Stutzer, Alois
        %T Blood Donations and Incentives: Evidence from a Field Experiment
        %D 2008
        %8 2008 Jul
        %I Institute of Labor Economics (IZA)
        %C Bonn
        %7 IZA Discussion Paper
        %N 3580
        %U https://www.iza.org/publications/dp3580
        %X 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.
        %K material incentives
%K blood donations
%K prosocial behavior
%K field experiment