Robustness and ambiguity in continuous time

A-Tier
Journal: Journal of Economic Theory
Year: 2011
Volume: 146
Issue: 3
Pages: 1195-1223

Score contribution per author:

2.011 = (α=2.01 / 2 authors) × 2.0x A-tier

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

Abstract

We use statistical detection theory in a continuous-time environment to provide a new perspective on calibrating a concern about robustness or an aversion to ambiguity. A decision maker repeatedly confronts uncertainty about state transition dynamics and a prior distribution over unobserved states or parameters. Two continuous-time formulations are counterparts of two discrete-time recursive specifications of Hansen and Sargent (2007) [16]. One formulation shares features of the smooth ambiguity model of Klibanoff et al. (2005) and (2009) [24] and [25]. Here our statistical detection calculations guide how to adjust contributions to entropy coming from hidden states as we take a continuous-time limit.

Technical Details

RePEc Handle
repec:eee:jetheo:v:146:y:2011:i:3:p:1195-1223
Journal Field
Theory
Author Count
2
Added to Database
2026-01-25