Record number :
2129127
Title of article :
Underidentification?
Author/Authors :
Arellano، نويسنده , , Manuel and Hansen، نويسنده , , Lars Peter and Sentana، نويسنده , , Enrique، نويسنده ,
Issue Information :
دوفصلنامه با شماره پیاپی سال 2012
Pages :
25
From page :
256
To page :
280
Abstract :
We develop methods for testing that an econometric model is underidentified and for estimating the nature of the failed identification. We adopt a generalized-method-of moments perspective in a possibly non-linear econometric specification. If, after attempting to replicate the structural relation, we find substantial evidence against the overidentifying restrictions of an augmented model, this is evidence against underidentification of the original model. To diagnose how identification might fail, we study the estimation of a one-dimensional curve that gives the parameter configurations that provide the greatest challenge to identification, and we illustrate this calculation in an empirical example.
Journal title :
Journal of Econometrics
Serial Year :
2012
Link To Document :
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