opportunity for profitable cooperation. Our experimental method creates two groups of subjects who are similar but have different … long-run losses. Initially similar, cooperation rates for groups with different intelligence levels diverge, declining in … groups of lower intelligence, and increasing to reach almost full cooperation levels in groups of higher intelligence …

hampers cooperation, as higher intelligence players are less cooperative once they are made aware that they play against …

theory, while sociological theories of social ties and intergroup comparisons suggest that bilateral cooperation can be … implemented by letting subjects make a positive contribution to a public good if they choose to defect from cooperation, i ….e. cooperation is collusive since the gains are at the expense of the public. We find that this negative externality increases …

mediated by differences in cognitive skills. Our design uses a Repeated Prisoner’s Dilemma, and we compare rates of cooperation … higher cooperation rates and profits than in separated groups (with consistent gains among lower IQ subjects and relatively …

artificial intelligence may or may not be cooperative. We study the deter-minants and forms of algorithmic cooperation in the … prisoner’s dilemma games played by humans in the lab. We find that the same factors that increase human cooperation largely … also determine the cooperation rates of algorithms. However, algorithms tend to play different strategies than humans …

We study the stability of voluntary cooperation in response to varying rates at which a group grows. Using a laboratory … cooperation. We then study the effect on cooperation of exogenously varying rates of entry. Slow growth yields higher cooperation … endogenous growth generally also produces high cooperation levels, growth stalls at intermediate group sizes, leaving potential …

Over the last millennium, the clan and the corporation have been the loci of cooperation in China and Europe … bifurcation. We highlight that groups with which individuals identify are basic units of cooperation. Such loyalty groups …, and the implied pattern of cooperation. …

assumption that the salience of the advantages of mutual cooperation plays a decisive role. This hypothesis is successfully …