Greiner, Ben; Levati, Maria Vittoria - Max-Planck-Institut für Ökonomik <Jena> / Abteilung … - 2003
first. Mutual cooperation is triggered by assuming thatwhat one passes on to the next is multiplied by a factor of 3 … sequentially. We nd thatpure indirect reciprocity enables mutual cooperation although strategicconsiderations and group size are …
