Rational inattention and revealed preference: The data-theoretic approach to economic modeling

Beliefs have as pervasive a role as utility functions in economic models of choice, and are no more visible to the naked eye. This suggests the value of a data-theoretic approach to imperfect information along the lines of Samuelson's “revealed preference” approach to utility maximization. I introduce a recently developed approach of this nature (Caplin and Martin, 2013a; Caplin and Dean, 2013a, 2013b). I highlight the broader potential of the data-theoretic approach to answer questions of an inter-disciplinary nature and to discipline an oncoming flood of behaviorally-relevant data.