. We review previous Cournot experiments in the literature. Additionally, we conduct a new series of experiments studying … oligopolies with two, three, four, and five firms in a unified frame. With two firms we find some collusion. Three …-firm oligopolies tend to produce outputs at the Nash level. Markets with four or five firms are never collusive and typically settle at …

. We review previous Cournot experiments in the literature. Additionally, we conduct a new series of experiments studying … oligopolies with two, three, four, and five firms in a unified frame. With two firms we find some collusion. Three …-firm oligopolies tend to produce outputs at the Nash level. Markets with four or five firms are never collusive and typically settle at …

actions will be played some fraction of the time in the long run. We then conduct experiments to check this fragility. We …

identical actions will be played some fraction of the time in the long run. We then conduct experiments to check this fragility …

actions will be played some fraction of the time in the long run. We then conduct experiments to check this fragility. We …