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Title: The effect of economic incentives on altruism: A field experiment


Nicola Lacetera, Case Western Reserve University
Mario Macis, University of Michigan
Robert Slonim, University of Sydney


In an on-going field experiment involving several tens of thousands potential blood donors, economic incentives are being provided at multiple blood drives. Manipulations include the dollar size of the incentives as well as the information provided to potential donors (even within a given drive) on the presence of these incentives. The design of the experiment as well as preliminary results will be presented.