We test experimentally an explanation of over and under confidence as motivated by (perhaps unconscious) strategic concerns, and find compelling evidence supporting this hypothesis in the behavior of participants who send and respond to others ́statements of confidence about how well they have...

This paper extends choice theory by allowing for the interaction between cognitive costs and social norms. The authors experimentally investigate the role of imitation and temporal decisional patterns when participants face a task which is costly in cognitive terms. They identify two main...