A comment on ‘growth and inequality in public good provision’: Testing the robustness and generalizability of dynamic public good games

Hauke Roggenkamp

Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), 2025, vol. 115, issue C

Abstract: I revisit the dynamic public goods game by Gächter et al. (2017) that captures temporal interdependencies in cooperation. I first reproduce parts of the original analysis and find only minor and inconsequential discrepancies. Using both a student and a more representative sample, I then replicate findings about growth and inequality in public good provision. Finally, I examine whether the robustness of results also translates into generalizability. Specifically, I test whether behavior in this experimentally-induced social dilemma predicts real climate action through voluntary carbon offsetting. Despite the game’s enhanced ecological validity through temporal interdependencies, I find no correlation between game behavior and climate action in either sample. This suggestive evidence indicates that laboratory paradigms, even when incorporating key real-world features, may better serve to isolate specific behavioral mechanisms than predict field behavior.

Keywords: Public goods; Dynamic games; Reproducibility; Generalizability; Online experiment; Climate change mitigation (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:soceco:v:115:y:2025:i:c:s2214804324001708

DOI: 10.1016/j.socec.2024.102333

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