Figure 2 | Scientific Reports

Figure 2

From: Indirect Reciprocity and the Evolution of Prejudicial Groups

Figure 2

Evolution of 100 agents with 5 equal-size sub-populations over 100,000 generations. Initial conditions: di, si, ui, Si and Pi are randomly selected and αi = 0 i. Si and Pi are permitted to evolve in the range {0, 0.1, …, 0.9}. The cumulative proportion of agents by values of Si, Pi and αi is shown in (a), (b) and (c) respectively. (d) Shows the cumulative proportion of out-group defections that occur as a consequence of prejudice. In the absence of prejudice, this additional proportion of out-group donations would have occurred.

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