Table 1 Behavioural strategies in Standard PD:The left and right tables show simultaneous and alternating games, respectively. The numbers in the second and third columns show the times the event occurred and the cooperation rate under the conditions, respectively. The \(P_{c(CD)}\) and \(P_{c(DC)}\) cases are always identical in simultaneous and alternating games because if an action is (C, D) from one player’s viewpoint in a round, it will always be (D, C) from the opponent’s viewpoint.
Simultaneous game | Alternating game | ||||||
|---|---|---|---|---|---|---|---|
# of cases | mean | variance | # of cases | mean | variance | ||
\(P_{c(r=1)}\) | 80 | 0.675 | 0.222 | \(P_{c(r=1)}\) | 76 | 0.868 | 0.116 |
\(P_{c(CC)}\) | 518 | 0.878 | 0.107 | \(P_{c(CC)}\) | 832 | 0.904 | 0.087 |
\(P_{c(CD)}\) | 260 | 0.523 | 0.250 | \(P_{c(CD)}\) | 182 | 0.610 | 0.239 |
\(P_{c(DC)}\) | 260 | 0.269 | 0.198 | \(P_{c(DC)}\) | 182 | 0.275 | 0.200 |
\(P_{c(DD)}\) | 482 | 0.205 | 0.164 | \(P_{c(DD)}\) | 248 | 0.343 | 0.226 |
