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The Inter-Group Comparison – Intra-Group Cooperation Hypothesis: Comparisons between Groups Increase Efficiency in Public Goods Provision
Böhm R,
Rockenbach B
(2013)
The Inter-Group Comparison – Intra-Group Cooperation Hypothesis: Comparisons between Groups Increase Efficiency in Public Goods Provision.
PLOS ONE 8(2): e56152.
https://doi.org/10.1371/journal.pone.0056152