Rational Inattention to Discrete Choices: A New Foundation for the Multinomial Logit Model

S-Tier
Journal: American Economic Review
Year: 2015
Volume: 105
Issue: 1
Pages: 272-98

Score contribution per author:

4.022 = (α=2.01 / 2 authors) × 4.0x S-tier

α: calibrated so average coauthorship-adjusted count equals average raw count

Abstract

Individuals must often choose among discrete actions with imperfect information about their payoffs. Before choosing, they have an opportunity to study the payoffs, but doing so is costly. This creates new choices such as the number of and types of questions to ask. We model these situations using the rational inattention approach to information frictions. We find that the decision maker's optimal strategy results in choosing probabilistically in line with a generalized multinomial logit model, which depends both on the actions' true payoffs as well as on prior beliefs. (JEL D11, D81, D83)

Technical Details

RePEc Handle
repec:aea:aecrev:v:105:y:2015:i:1:p:272-98
Journal Field
General
Author Count
2
Added to Database
2026-01-25