The paper presents an expository account of several experimentally based descriptive theories of cooperation in …

private   agents being able to destabilise the exchange rate against the   cooperation of the central banks required by the …

makers can choose an individual level of cooperation from a given range of possible actions. In the first condition, a … strategic presentation bias applying these two conditions. Subjects in the West Bank show a substantially higher cooperation …

conformists dramatically increases the group size for which cooperation can be sustained. The results of our model are robust …

extremely large there is no room for cooperation and a conflict trap emerges; (b) whenever the degree of asymmetry falls within … a critical interval cooperation seems to emerge even if only the agent with the higher evaluation of the stake makes a … concessions (capturing a kind of strong reciprocity) made by both agents can pave the way for cooperation. In such a case, the …

Cooperation in real-world dilemmas takes many forms. We introduce a class of two-player games that permits two distinct … cooperation will emerge. …

's own analysis. Our reformulation of the Maghribi's "punishment strategies" incorporates principal components of their … actual historical practice and explains why they may have been necessary to sustain cooperation, especially in the presence …

cooperation in a single-shot Prisoner's Dilemma. We find that, contrary to initial expectations, communication allows the … emergence of cooperation in such a system. Moreover, we find a systematic relationship between the processing and language …

of cooperation primarily due to (1) faster initial emergence of reciprocity and 92) more resistance to invasion by mutual … defectors. Even when agents use one or two tag-trials (searches) overall cooperation is greatly improved, so that even high cost …

: the higher the degree of market integration and the higher the payoffs to cooperation in everyday life, the greater the …