Title |
Do we harm others even if we don't need to?
|
---|---|
Published in |
Frontiers in Psychology, June 2015
|
DOI | 10.3389/fpsyg.2015.00729 |
Pubmed ID | |
Authors |
M. Paula Cacault, Lorenz Goette, Rafael Lalive, Mathias Thoenig |
Abstract |
Evolutionary explanations of the co-existence of large-scale cooperation and warfare in human societies rest on the hypothesis of parochial altruism, the view that in-group pro-sociality and out-group anti-sociality have co-evolved. We designed an experiment that allows subjects to freely choose between actions that are purely pro-social, purely anti-social, or a combination of the two. We present behavioral evidence on the existence of strong aggression-a pattern of non-strategic behaviors that are welfare-reducing for all individuals (i.e., victims and perpetrators). We also show how strong aggression serves to dynamically stabilize in-group pro-sociality. |
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Switzerland | 1 | 8% |
Germany | 1 | 8% |
Unknown | 5 | 42% |
Demographic breakdown
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Science communicators (journalists, bloggers, editors) | 2 | 17% |
Scientists | 2 | 17% |
Mendeley readers
Geographical breakdown
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United States | 1 | 3% |
Germany | 1 | 3% |
Unknown | 32 | 91% |
Demographic breakdown
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Student > Bachelor | 5 | 14% |
Researcher | 4 | 11% |
Student > Master | 4 | 11% |
Professor | 2 | 6% |
Other | 5 | 14% |
Unknown | 5 | 14% |
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Arts and Humanities | 2 | 6% |
Other | 0 | 0% |
Unknown | 7 | 20% |