Universität zu Köln

Doğan, Gönül ORCID: 0000-0002-1075-1102, Glowacki, Luke and Rusch, Hannes (2018). Spoils division rules shape aggression between natural groups. Nature Human Behaviour, 2 (5). 322 - 326. NEW YORK: NATURE PUBLISHING GROUP. ISSN 2397-3374

Full text not available from this repository.

Abstract

Violent intergroup conflicts cause widespread harm; yet, throughout human history, destructive hostilities occur time and time again(1,2). Benefits that are obtainable by victorious parties include territorial expansion, deterrence and ascendency in between-group resource competition(3-6). Many of these are non-excludable goods that are available to all group members, whereas participation entails substantial individual risks and costs. Thus, a collective action problem emerges, raising the question why individuals participate in such campaigns at all(7-9). Distinguishing offensive and defensive intergroup aggression provides a partial answer: defensive aggression is adaptive under many circumstances(10-14). However, participation in offensive aggression, such as raids or wars of conquest, still requires an explanation. Here, we focus on one condition that is hypothesized to facilitate the emergence of offensive intergroup aggression: asymmetric division of a conflict's spoils may motivate those profiting from such inequality to initiate between-group aggression, even if doing so jeopardizes their group's welfare(15-17). We test this hypothesis by manipulating how benefits among victors are shared in a contest experiment among three Ethiopian societies whose relations are either peaceful or violent. Under equal sharing, between-group hostility increased contest contributions. By contrast, unequal sharing prompted offensive contribution strategies in privileged participants, whereas disadvantaged participants resorted to defensive strategies, both irrespective of group relations.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Doğan, Gönül UNSPECIFIED orcid.org/0000-0002-1075-1102 UNSPECIFIED Glowacki, Luke UNSPECIFIED UNSPECIFIED UNSPECIFIED Rusch, Hannes UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-187457
DOI:	10.1038/s41562-018-0338-z
Journal or Publication Title:	Nature Human Behaviour
Volume:	2
Number:	5
Page Range:	322 - 326
Date:	2018
Publisher:	NATURE PUBLISHING GROUP
Place of Publication:	NEW YORK
ISSN:	2397-3374
Language:	English
Faculty:	Faculty of Management, Economy and Social Sciences
Divisions:	Faculty of Management, Economics and Social Sciences > Business Administration > Corporate Development > Professorship for Corporate Development & Corporate Responsibility
Subjects:	Economics
Uncontrolled Keywords:	Keywords Language ALTRUISTIC BEHAVIOR; HUNTER-GATHERERS; INTERGROUP; WAR; CONTESTS; WARFARE Multiple languages Psychology, Biological; Multidisciplinary Sciences; Neurosciences; Psychology, Experimental Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/18745