Identifying the Sources of Model Misspecification

Working Paper: CEPR ID: DP10140

Authors: Atsushi Inoue; Chunhung Kuo; Barbara Rossi

Abstract: In this paper we propose empirical methods for detecting and identifying misspecifications in DSGE models. We introduce wedges in a DSGE model and identify potential misspecification via forecast error variance decomposition (FEVD) and marginal likelihood analyses. Our simulation results based on a small-scale DSGE model demonstrate that our method can correctly identify the source of misspecification. Our empirical results show that the medium-scale New Keynesian DSGE model that incorporates features in the recent empirical macro literature is still very much misspecified; our analysis highlights that the asset and labor markets may be the source of the misspecification.

Keywords: DSGE models; empirical macroeconomics; model misspecification

JEL Codes: C32; E32


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
proposed empirical methods (C59)identify sources of model misspecification (C50)
introduction of wedges (Y20)identify model misspecification (C50)
medium-scale New Keynesian DSGE model (E12)misspecified (C50)
model misspecification (C52)observed contributions of wedges (D33)
FEVD and marginal likelihood analyses (C52)understanding of model structure (C20)

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