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 …

-based social preferences suggest that negative externalities make collusion harder to sustain than predicted by standard economic … 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 …

information, our data confirm the well-known result that duopoly players achieve, on average, partial collusion. However, as soon …

information, our data confirm the well-known result that duopoly players achieve, on average, partial collusion. However, as soon …