Young children, but not chimpanzees, are averse to disadvantageous and advantageous inequities

Journal article


Ulber, J., Hamann, K. and Tomasello, M. 2016. Young children, but not chimpanzees, are averse to disadvantageous and advantageous inequities. Journal of Experimental Child Psychology. 155, pp. 48-66. https://doi.org/10.1016/j.jecp.2016.10.013
AuthorsUlber, J., Hamann, K. and Tomasello, M.
Abstract

The age at which young children show an aversion to inequitable resource distributions, especially those favoring themselves, is unclear. It is also unclear whether great apes, as humans' nearest evolutionary relatives, have an aversion to inequitable resource distributions at all.

Using a common methodology across species and child ages, the current two studies found that 3- and 4-year-old children (N=64) not only objected when they received less than a collaborative partner but also sacrificed to equalize when they received more. They did neither of these things in a nonsocial situation, demonstrating the fundamental role of social comparison. In contrast, chimpanzees (N=9) showed no aversion to inequitable distributions, only a concern for maximizing their own resources, with no differences between social and nonsocial conditions.

These results underscore the unique importance for humans, even early in ontogeny, for treating others fairly, presumably as a way of becoming a cooperative member of one's cultural group.

KeywordsCooperation; fairness; inequity aversion; pan troglodytes; resource allocation; social context
Year2016
JournalJournal of Experimental Child Psychology
Journal citation155, pp. 48-66
PublisherElsevier
Digital Object Identifier (DOI)https://doi.org/10.1016/j.jecp.2016.10.013
Publication dates
Online02 Dec 2016
Publication process dates
Deposited05 Dec 2018
Accepted2016
Output statusPublished
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https://repository.canterbury.ac.uk/item/88xz2/young-children-but-not-chimpanzees-are-averse-to-disadvantageous-and-advantageous-inequities

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