A comparison of endogenous and exogenous group formation to increase cooperation

IF 1.4 3区经济学 Q2 ECONOMICS

Journal of Behavioral and Experimental Economics Pub Date : 2025-09-25 DOI:10.1016/j.socec.2025.102451

Andrea Guido , Louis Putterman , Rustam Romaniuc

引用次数: 0

Abstract

Grouping cooperatively disposed subjects with one another has been shown to slow the decline of contributions in public goods games. So far, similar findings have been obtained both when groups are exogenously formed by the experimenter and when they are endogenously formed by algorithms taking subjects’ preferences for partners into account. We designed an experiment in which internally homogeneous groups – composed of like-minded subjects – can form either exogenously or endogenously, testing the conjecture that endogenously formed groups of cooperators will outperform similar exogenously formed groups due to subjects’ decision rights in the endogenous procedure. We find that the conjecture is not supported, discussing potential explanations.

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增加合作的内生和外生群体形成的比较

在公共产品游戏中，将具有合作倾向的受试者分组可以减缓贡献的下降。到目前为止，在实验者外生形成的群体和考虑受试者对伴侣偏好的算法内生形成的群体两种情况下，都得到了类似的发现。我们设计了一个实验，在这个实验中，由志同道合的主体组成的内部同质群体可以外生或内生地形成，以检验内生形成的合作群体会因为主体在内生过程中的决策权而优于类似的外生形成的合作群体的猜想。我们发现这个猜想是不支持的，讨论潜在的解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Behavioral and Experimental Economics ECONOMICS-

CiteScore

2.60

自引率

12.50%

发文量

113

审稿时长

83 days

期刊介绍： The Journal of Behavioral and Experimental Economics (formerly the Journal of Socio-Economics) welcomes submissions that deal with various economic topics but also involve issues that are related to other social sciences, especially psychology, or use experimental methods of inquiry. Thus, contributions in behavioral economics, experimental economics, economic psychology, and judgment and decision making are especially welcome. The journal is open to different research methodologies, as long as they are relevant to the topic and employed rigorously. Possible methodologies include, for example, experiments, surveys, empirical work, theoretical models, meta-analyses, case studies, and simulation-based analyses. Literature reviews that integrate findings from many studies are also welcome, but they should synthesize the literature in a useful manner and provide substantial contribution beyond what the reader could get by simply reading the abstracts of the cited papers. In empirical work, it is important that the results are not only statistically significant but also economically significant. A high contribution-to-length ratio is expected from published articles and therefore papers should not be unnecessarily long, and short articles are welcome. Articles should be written in a manner that is intelligible to our generalist readership. Book reviews are generally solicited but occasionally unsolicited reviews will also be published. Contact the Book Review Editor for related inquiries.