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Collaboration Encourages Equal Sharing in Children but Not in Chimpanzees

Published: July 20, 2011.
By Max-Planck-Gesellschaft

Katharina Hamann with an international team of researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, Harvard University and the Michigan State University found that sharing in children that young is a pure collaborative phenomenon: when kids received rewards not cooperatively but as a windfall, or worked individually next to one another, they kept the majority of toys for themselves.

In studies 2 and 3, children participated either in a collaboration, a windfall or a parallel work condition, with the latter requiring the same amount of work input by both children (just as in the collaboration), but now each child could pull his or her own rope independently of the other child.

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