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How fairly do chimpanzees play the ultimatum game?

Darby Proctor¹, Sarah F Brosnan, Frans B M de Waal

¹Living Links; Yerkes National Primate Research Center; Emory University; Atlanta, GA USA.

Communicative & Integrative Biology

|May 29, 2013

Summary

Chimpanzees exhibit fair behavior in the Ultimatum Game, mirroring human responses. However, the underlying motivations for this fairness in chimpanzees remain a complex area for further scientific investigation.

Keywords:

behavioral economics chimpanzee fairness primate ultimatum game

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Area of Science:

Primate behavior
Comparative psychology
Behavioral economics

Background:

Fairness is a key aspect of human social behavior.
The Ultimatum Game is a standard test for assessing fairness.
Previous research suggests humans possess an innate sense of fairness.

Purpose of the Study:

To investigate fairness in non-human primates.
To compare chimpanzee behavior in the Ultimatum Game to human behavior.
To explore the motivations behind observed fairness in chimpanzees.

Main Methods:

Chimpanzees were tested using the Ultimatum Game.
Behavioral responses were recorded and analyzed.
Comparisons were made between chimpanzee and human behavioral data.

Main Results:

Chimpanzees demonstrated behavior similar to humans in the Ultimatum Game.
The study provides evidence of fair behavior in chimpanzees.
Distinctions between behavior and motivation were highlighted.

Conclusions:

Chimpanzees exhibit fair behavior, analogous to humans, in the Ultimatum Game.
The underlying motivations for this fair behavior in chimpanzees require further research.
Fairness in non-human primates is a complex phenomenon involving both behavior and underlying drivers.