TY  - RPRT
        AU  - Bruhin, Adrian
AU  - Götte, Lorenz
AU  - Haenni, Simon
AU  - Jiang, Lingqing
        TI  - Spillovers of Prosocial Motivation: Evidence from an Intervention Study on Blood Donors
        PY  - 2014/Dec/
        PB  - Institute of Labor Economics (IZA)
        CY  - Bonn
        T2  - IZA Discussion Paper
        IS  - 8738
        UR  - https://www.iza.org/publications/dp8738
        AB  - Spillovers of prosocial motivation are crucial for the formation of social capital. They facilitate interactions among individuals and create social multipliers that amplify the effects of policy interventions. We conducted a large-scale intervention study among dyads of blood donors to investigate whether social ties lead to motivational spillovers in the decision to donate. The intervention is a randomized phone call making donors aware of a current shortage of their blood type and serving us as an instrument for identifying motivational spillovers. About 40% of a donor's motivation spills over to the other donor, creating a significant social multiplier of 1.78.
        KW  - bivariate probit
KW  - blood donation
KW  - prosocial motivation
KW  - social ties
KW  - social interaction
        ER  -