Successful individuals were frequently found to be overly optimistic. These findings are puzzling, as one could expect that realists would perform best in the long run. We show, however, that in a large class of strategic interactions of either cooperation or competition, the equilibrium payoffs...

We report experimental results on exclusive dealing inspired by the literature on “naked exclusion”. Our key findings are: First, exclusion of a more efficient entrant is a widespread phenomenon in lab markets. Second, allowing incumbents to discriminate between buyers increases exclusion...