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Children learn rules of equality by age eight

But those with siblings are more selfish than those without.

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  1. Fehr, E., Bernhard, H. & Rockenbach, B. Nature 454, 1079-1083 (2008).

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  2. Silk, J.B. et al. Nature 437, 1357-1359 (2005).

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Smith, K. Children learn rules of equality by age eight. Nature (2008).

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