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Non-Bayesian updating in a social learning experiment
Working Paper
In our laboratory experiment, subjects, in sequence, have to predict the value of a good. We elicit the second subjects belief twice: first (first belief), after he observes his predecessors action; second (posterior belief), after he observes his private signal. Our main result is that the second subjects weigh the private signal as a Bayesian agent would do when the signal confirms their first belief; they overweight the signal when it contradicts their first belief.
4 July 2018