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Entropy 2013, 15(11), 4932-4955;

Dynamical Structure of a Traditional Amazonian Social Network

Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM 87501, USA
Department of Anthropology, Emory University, 1557 Dickey Drive, Atlanta, GA 30322, USA
School of Informatics and Computing, Indiana University, 901 E 10th Street, Bloomington, IN 47408, USA
Department of Anthropology, University of California Santa Barbara, Santa Barbara, CA 93106, USA
Department of Anthropology, University of New Mexico, MSC01-1040, Albuquerque, NM 87131, USA
Authors to whom correspondence should be addressed.
Received: 24 September 2013 / Revised: 30 October 2013 / Accepted: 31 October 2013 / Published: 13 November 2013
(This article belongs to the Special Issue Social Networks and Information Diffusion)
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Reciprocity is a vital feature of social networks, but relatively little is known about its temporal structure or the mechanisms underlying its persistence in real world behavior. In pursuit of these two questions, we study the stationary and dynamical signals of reciprocity in a network of manioc beer (Spanish: chicha; Tsimane’: shocdye’) drinking events in a Tsimane’ village in lowland Bolivia. At the stationary level, our analysis reveals that social exchange within the community is heterogeneously patterned according to kinship and spatial proximity. A positive relationship between the frequencies at which two families host each other, controlling for kinship and proximity, provides evidence for stationary reciprocity. Our analysis of the dynamical structure of this network presents a novel method for the study of conditional, or non-stationary, reciprocity effects. We find evidence that short-timescale reciprocity (within three days) is present among non- and distant-kin pairs; conversely, we find that levels of cooperation among close kin can be accounted for on the stationary hypothesis alone. View Full-Text
Keywords: social systems; social networks; time-series analysis; cooperation; reciprocity; kinship; Tsimane’; forager-horticulturalists social systems; social networks; time-series analysis; cooperation; reciprocity; kinship; Tsimane’; forager-horticulturalists

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Hooper, P.L.; DeDeo, S.; Caldwell Hooper, A.E.; Gurven, M.; Kaplan, H.S. Dynamical Structure of a Traditional Amazonian Social Network. Entropy 2013, 15, 4932-4955.

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