Fig. 1 | Palgrave Communications

Fig. 1

From: Effects of beliefs about sanctions on promoting cooperation in a public goods game

Fig. 1

Cooperation ratio and estimation of sanctions. The upper panels show the cooperation ratio with no sanction and with sanctions. The cooperation ratio represents the ratio of the number of participants who chose to contribute to public goods. Panel a shows the results for the between-subjects design (Experiment 1). Panel b shows the results for the within-subjects design (Experiment 2). The cooperation ratio for the punishment condition was high. The lower panels show the estimated punishments and rewards. Panel c shows the results of Experiment 1, and panel d shows those of Experiment 2. Both sets of results show that the estimated sanction is higher for punishments than for rewards. The error bars in each panel show the standard error

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