''It's a Wonderful Life'' - signaling generosity among the Ache of Paraguay

Author: Gurven M.   Allen-Arave W.   Hill K.   Hurtado M.  

Publisher: Elsevier

ISSN: 1090-5138

Source: Evolution and Human Behavior, Vol.21, Iss.4, 2000-07, pp. : 263-282

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Abstract