Intragroup communication in social dilemmas: An artefactual public good field experiment in small-scale communities

Nils Christian Hönow and Adrian Pourviseh

No 1043, Ruhr Economic Papers from RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen

Abstract: Communication is well known to increase cooperation rates in social dilemma situations, but the exact mechanisms behind this have been questioned and discussed. This study examines the impact of communication on public good provisioning in an artefactual field experiment conducted with 216 villagers from small, rural communities in northern Namibia. In line with previous experimental findings, we observe a strong increase in cooperation when face-to-face communication is allowed before decision making. We additionally introduce a condition in which participants cannot discuss the dilemma but talk to their group members about an unrelated topic prior to learning about the public good game. It turns out that this condition already leads to higher cooperation rates, albeit not as high as in the condition in which discussions about the social dilemma are possible. The setting in small communities also allows investigating the effect of pre-existing social relationships between group members and their interaction with communication. We find that both types of communication are primarily effective among socially more distant group members, which suggests that communication and social ties work as substitutes in increasing cooperation. Further analyses rule out better comprehension of the game and increased mutual expectations of one's group members' contributions as drivers for the communication effect. Finally, we discuss the role of personal and injunctive norms to keep commitments made during discussions.

Keywords: Communication; cooperation; field experiment; public good; social ties (search for similar items in EconPapers)
JEL-codes: C71 C93 D8 D9 H41 Q5 Z1 (search for similar items in EconPapers)
Date: 2023
New Economics Papers: this item is included in nep-cdm, nep-exp, nep-gth and nep-soc
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Persistent link: https://EconPapers.repec.org/RePEc:zbw:rwirep:280402

DOI: 10.4419/96973212

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