In-group favouritism and out-group discrimination in naturally occurring groups

Klaus Abbink; Donna Harris

doi:10.1371/journal.pone.0221616

In-group favouritism and out-group discrimination in naturally occurring groups

PLoS One. 2019 Sep 4;14(9):e0221616. doi: 10.1371/journal.pone.0221616. eCollection 2019.

Authors

Klaus Abbink¹, Donna Harris²

Affiliations

¹ Monash University, Department of Economics, Clayton, VIC, Australia.
² Department of Economics, University of Oxford, Oxford, OX1, United Kingdom.

Abstract

We study in-group favouritism and out-group discrimination in a multiplayer dictator game in a naturally occuring group setting. An allocator divides a large sum of money among three groups of around 20 recipients each and also to themselves. The groups are supporters of two rival political movements in Thailand and politically neutral subjects. The non-rival out-group acts as a reference point and allows us to measure in-group favouritism and out-group discrimination. A treatment with artificial groups serves as a control. We find both in-group favouritism and out-group discrimination among the naturally occurring groups. In artificial groups, favouritism is observed, but not discrimination. Our results suggest that the two behaviours are not driven by the same motive, and only when groups are in conflict that out-group discrimination is likely to occur.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Group Processes*
Humans
Politics
Social Discrimination*
Social Identification*
Thailand

Grants and funding

Financial support from CBESS, University of East Anglia, is gratefully acknowledged. The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.