Case studies of cartels and recent theory suggest that repeated communication is key for stable cooperation in … understood. We study cooperation under different monitoring and communication structures in the laboratory. Under all monitoring … monitoring, where actions can only be observed with noise, cooperation is stable only when subjects can communicate before every …

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 …

from one continuation probability to the other. When switching from large to small, transient higher levels of cooperation … are observed in the early games of the small continuation set. Conversely, when switching from small to large, cooperation … probabilities. These asymmetries suggest a bias in favor of cooperation. Finally, we examine the link between altruism and RPD play …

The observability of partners' past play is known to theoretically improve cooperation in an infinitely repeated … information per se may not improve cooperation. A structural estimation suggests that a certain percentage of players act …