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. 2015 Dec 14;5:18076. doi: 10.1038/srep18076

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Copyright © 2015, Macmillan Publishers Limited

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(A) Average dictators’ donation with respect to selection strength β. The more the future’s importance is taken into account the more we need to increase the intensity of selection β in order to fit our experimental data. (B) Experimental fit for a combination of the selection intensity β and the future importance factor δ (combinations annotated with the “*” represent the average donation observed in treatment 2). (C) The strategy distributions for the combinations of β and δ that fit best the average amount given we observed in treatment 2. Figure S9 in Supplementary Material shows similar results for the noisy AG, highlighting even more clearly the importance of acceptance and the payoff obtained in future interactions.