Journal
BIOLOGY LETTERS
Volume 2, Issue 3, Pages 412-414Publisher
ROYAL SOC
DOI: 10.1098/rsbl.2006.0509
Keywords
cooperative behaviour; altruism; reputation; eyespots
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We examined the effect of an image of a pair of eyes on contributions to an honesty box used to collect money for drinks in a university coffee room. People paid nearly three times as much for their drinks when eyes were displayed rather than a control image. This finding provides the first evidence from a naturalistic setting of the importance of cues of being watched, and hence reputational concerns, on human cooperative behaviour.
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