Social exclusion decreases prosocial behavior.

  title={Social exclusion decreases prosocial behavior.},
  author={Jean M. Twenge and Roy F. Baumeister and C. Nathan DeWall and Natalie J. Ciarocco and Jared M. Bartels},
  journal={Journal of personality and social psychology},
  volume={92 1},
In 7 experiments, the authors manipulated social exclusion by telling people that they would end up alone later in life or that other participants had rejected them. Social exclusion caused a substantial reduction in prosocial behavior. Socially excluded people donated less money to a student fund, were unwilling to volunteer for further lab experiments, were less helpful after a mishap, and cooperated less in a mixed-motive game with another student. The results did not vary by cost to the… 

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