Figure 4.

Learning from others' success. We calculated each individual's mean contribution over the five rounds with social information, and the corresponding mean value of information shown. Shown are the distributions, mean (large semi-transparent points) and median (large, solid, black-rimmed points) of these individual mean contributions, depending on treatment. Dashed lines are the mean values of the social information shown: Common pattern (blue, shown in all three treatments) or success/free rider pattern (red). The median/mean contribution deviated from the Common pattern (blue) when individuals could learn from success. Median/mean contributions were closest to the Success pattern (red). (Online version is in colour.)