We designed four observational learning experiments to identify the key channels that, along with Bayes … observational learning accounts for the phenomenon of excessive herding, it captures well herd behavior with medium quality signals …-rational inferences, drive herd behavior. In Experiment 1, unobserved, whose actions remain private, learn from the public actions made in …

such positive spin? We use a theoretical model and a laboratory experiment to study the strategic use of vagueness in a … interval that contains her actual type. Theory predicts that when facing a possibly naive receiver, the sender discloses an … interval that separates her from worse types but is upwardly vague. Senders in the experiment adopt this strategy and some …

study experimentally to what extent cross-game learning can reduce overbidding in SPAs, taking into account cognitive skills … losses from high bids are more salient than in SPAs. Experience in FPAs causes substantial cross-game learning for … bid shading by cognitively more able participants, resulting in lower profits in FPAs. Thus, cross-game learning has the …

infinite-horizon learning, and subjective expectations with Euler-equation learning. Under rational expectations, the model … necessitates of large, possibly unrealistically so, degrees of myopia. The same result persists under infinite-horizon learning …, given that agents are still remarkably farsighted. But, under Euler-equation learning, the model can fit the data with only …

The adaptive learning approach has been fruitfully employed to model the formation of aggregate expectations at the … macroeconomic level, as an alternative to rational expectations. This paper uses adaptive learning to understand, instead, the … sentiment, defined as the degrees of excess optimism and pessimism that cannot be justified by the near-rational learning model …

We propose and experimentally test a theory of strategic behavior in which players are cognitively imprecise and …

We derive the optimal monetary policy in a sticky price model when private agents follow adaptive learning. We show … order to facilitate private sector learning and thus ease the future intratemporal inflation-output gap trade-offs. The … policy recommendation is robust: the welfare loss entailed by the optimal policy under learning if the private sector …

learning as a two-armed bandit problem and highlight the interaction between learning (experimentation) and production. We … optimal production decision after experimentation, we find over-experimentation to be optimal. The asymmetric information …

behavior of others. This may lead to welfare-reducing 'overreactions' to public signals. We present an experiment based on a …