Showing Off in Humans: Male Generosity as a Mating Signal

We examined people's charity contributions while in the presence of an observer of the same sex, opposite sex, or no observer. Inspired by costly signaling theory, we hypothesized that men would be more generous in the presence of a potential mate. Men and women played a number of experimental...

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Main Authors: Wendy Iredale, Mark Van Vugt, Robin Dunbar
Format: Article
Language:English
Published: SAGE Publishing 2008-07-01
Series:Evolutionary Psychology
Online Access:https://doi.org/10.1177/147470490800600302
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author Wendy Iredale
Mark Van Vugt
Robin Dunbar
author_facet Wendy Iredale
Mark Van Vugt
Robin Dunbar
author_sort Wendy Iredale
collection DOAJ
description We examined people's charity contributions while in the presence of an observer of the same sex, opposite sex, or no observer. Inspired by costly signaling theory, we hypothesized that men would be more generous in the presence of a potential mate. Men and women played a number of experimental games in which they could earn money. On completion of these games participants were asked what percentage of their earned money they would be willing to donate to charity. Our results show that men contribute more to charity when observed by a member of the opposite sex than by a member of the same sex or no observer. Conversely, female charity donations did not significantly vary across the three observer conditions. Findings support the notion that men's generosity might have evolved as a mating signal.
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spelling doaj.art-6bdcb126dc204b2995a19d57ef0b3b942022-12-22T03:05:24ZengSAGE PublishingEvolutionary Psychology1474-70492008-07-01610.1177/14747049080060030210.1177_147470490800600302Showing Off in Humans: Male Generosity as a Mating SignalWendy IredaleMark Van VugtRobin DunbarWe examined people's charity contributions while in the presence of an observer of the same sex, opposite sex, or no observer. Inspired by costly signaling theory, we hypothesized that men would be more generous in the presence of a potential mate. Men and women played a number of experimental games in which they could earn money. On completion of these games participants were asked what percentage of their earned money they would be willing to donate to charity. Our results show that men contribute more to charity when observed by a member of the opposite sex than by a member of the same sex or no observer. Conversely, female charity donations did not significantly vary across the three observer conditions. Findings support the notion that men's generosity might have evolved as a mating signal.https://doi.org/10.1177/147470490800600302
spellingShingle Wendy Iredale
Mark Van Vugt
Robin Dunbar
Showing Off in Humans: Male Generosity as a Mating Signal
Evolutionary Psychology
title Showing Off in Humans: Male Generosity as a Mating Signal
title_full Showing Off in Humans: Male Generosity as a Mating Signal
title_fullStr Showing Off in Humans: Male Generosity as a Mating Signal
title_full_unstemmed Showing Off in Humans: Male Generosity as a Mating Signal
title_short Showing Off in Humans: Male Generosity as a Mating Signal
title_sort showing off in humans male generosity as a mating signal
url https://doi.org/10.1177/147470490800600302
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