ambiguous lotteries. In the second experiment the sample averages do not converge.If we define fictive learning in an experiment …, then we expect fictive learning in the first experiment, but no fictive learning in the second experiment. The surprising … finding in this paper is the presence of fictive learning in the second experiment. We attribute this counterintuitive result …

Observational learning is typically examined when agents have precise information about their position in the sequence … individuals and receive a private signal about the state of the world. We show that social learning is robust to position … uncertainty. Under any sampling rule satisfying a stationarity assumption, learning is complete if signal strength is unbounded …