http://feeds.arstechnica.com/~r/arstechnica/index/~3/HIKg...

What started out as a routine study of group behavior ended up turning a bit surreal. According to the authors of a new paper, they started out trying to find out how long a group would tolerate members that abused the common good. In the process, they found that members who put the most into the common good were quickly expelled from the group.

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