Non-Bayesian Updating: A Theoretical Framework
This paper models an agent in a multi-period setting who does not update according to Bayes? Rule, and who is self-aware and anticipates her updating behavior when formulating plans. Choice-theoretic axiomatic foundations are provided. Then the model is specialized axiomatically to capture updating biases that reflect excessive weight given to (i) prior be- liefs, or alternatively, (ii) the realized sample. Finally, the paper describes a counterpart of the exchangeable Bayesian model, where the agent tries to learn about parameters, and some answers are provided to the question what does a non-Bayesian updater learn?
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|Date of creation:||Oct 2005|
|Date of revision:|
|Contact details of provider:|| Postal: 270 Bay State Road, Boston, MA 02215|
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