Fig. 5
From: Empirical evidence for the spread of Cooperation through copying successful groups
Figure 5: Posterior estimates of individual reciprocity parameters from 1007 participants’contribution decisions in both experiments. As in Figures 3 and 4, 1008 red represents the “Control” condition and blue represents the “Out-group 1009 information” condition. The x-axis shows the average contribution of the other 1010 three members in the t-1 round, while the y-axis shows the participant’s 1011 contribution in the t round. The bubble chart represents observed data, with the 1012 size of the dots indicating the number of data points. Dotted lines show the 1013 estimated mean reciprocity, and shaded regions represent the 95% credible 1014 interval (HDI) of the predictions.
