Co-action equilibrium fails to predict choices in mixed-strategy settings

Berger, Ulrich (2018) Co-action equilibrium fails to predict choices in mixed-strategy settings. Scientific Reports, 8 (751). pp. 1-5. ISSN 2045-2322

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Social projection is the tendency to project one's own characteristics onto others. This phenomenon can potentially explain cooperation in prisoner's dilemma experiments and other social dilemmas. The social projection hypothesis has recently been formalized for symmetric games as co-action equilibrium and for general games as consistent evidential equilibrium. These concepts have been proposed to predict choice behavior in experimental one-shot games. We test the predictions of the co-action equilibrium concept in a simple binary minimizer game experiment. We find no evidence of social projection.

Item Type: Article
Additional Information: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Keywords: Cultural evolution, Human behaviour, Social evolution
Divisions: Departments > Volkswirtschaft
Version of the Document: Published
Depositing User: Ulrich Berger
Date Deposited: 16 Jan 2018 12:47
Last Modified: 16 Jan 2018 13:52
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