the commons games, and determine the effect of assortativity on the emergence and stability of cooperation. …Cooperation in social dilemmas plays a pivotal role in the formation of systems at all levels of complexity, from … stability of cooperation pose an evolutionary conundrum, since cooperation, though beneficial to others, is costly to the …

Human cooperation, occurring without reciprocation and between unrelated individuals in large populations, represents … via social learning. Using an online social dilemma experiment, we find evidence that participants' contributions were … evidence for lower cooperation (i) when exposed to social information about peer cooperation levels than without such …

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 …

can promote cooperation through a combination of sorting and opportunistic signaling, with late period defections by … remains unclear. In each of six treatments that vary the cooperation premium and the informational basis for reputation …, that with a high cooperation premium and good information, investment in reputation grows across sets of finitely …