Table 1.
Payoffs and critical mass.
Table 2.
Payoffs, critical mass and uncertainty.
Table 3.
Critical mass and time-lag uncertainty.
Table 4.
Critical mass and time-lag discounting.
Table 5.
Sample sizes of subjects and matching groups.
Fig 1.
Time-lag discounting and uncertainty, with critical mass and communication.
Error bars show one standard deviation above and below the mean. In correspondence with using matching groups as the unit of observation, averages and standard deviations are calculated with respect to the means per matching group.
Fig 2.
Critical mass, time-lag uncertainty, and communication.
Bars show the percentage of choices for option A in each scenario (first eight rounds). Time-lag uncertainty and critical mass scenarios were varied within subjects; each scenario was played a first time (blue, on the left) and a second time (red, on the right). The possibility to communicate via chat was varied between subjects. High and low thresholds for the critical mass are indicated by α = 3/5 and α = 1/5, respectively. Error bars show one standard deviation above and below the mean. In correspondence with using matching groups as the unit of observation, averages and standard deviations are calculated with respect to the means per matching group.
Table 6.
Multivariate analysis of the likelihood of the alternative norm being chosen.
Table 7.
Multivariate analysis, separately for sessions with and without communication.