Publication Date: August 2009
This paper examines circumstances under which subjectivity enhances the eﬀectiveness of inductive reasoning. We consider a game in which Fate chooses a data generating process and agents are characterized by inference rules that may be purely objective (or data-based) or may incorporate subjective considerations. The basic intuition is that agents who invoke no subjective considerations are doomed to “overﬁt” the data and therefore engage in ineﬀective learning. The analysis places no computational or memory limitations on the agents — the role for subjectivity emerges in the presence of unlimited reasoning powers.
Induction, Simplicity, Bayesian learning
JEL Classification Codes: D8, C0
Published in Theoretical Economics (May 2012), 7(2): 183-216 [DOI]