On the Interpretation of Instrumental Variables in the Presence of Specification Errors

The method of instrumental variables (IV) and the generalized method of moments (GMM), and their applications to the estimation of errors-in-variables and simultaneous equations models in econometrics, require data on a sufficient number of instrumental variables that are both exogenous and relevant...

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Main Authors: P.A.V.B. Swamy, George S. Tavlas, Stephen G. Hall
Format: Article
Language:English
Published: MDPI AG 2015-01-01
Series:Econometrics
Subjects:
Online Access:http://www.mdpi.com/2225-1146/3/1/55
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author P.A.V.B. Swamy
George S. Tavlas
Stephen G. Hall
author_facet P.A.V.B. Swamy
George S. Tavlas
Stephen G. Hall
author_sort P.A.V.B. Swamy
collection DOAJ
description The method of instrumental variables (IV) and the generalized method of moments (GMM), and their applications to the estimation of errors-in-variables and simultaneous equations models in econometrics, require data on a sufficient number of instrumental variables that are both exogenous and relevant. We argue that, in general, such instruments (weak or strong) cannot exist.
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spelling doaj.art-101c693d0c0a49f6b63d992d322d69c62022-12-22T01:58:45ZengMDPI AGEconometrics2225-11462015-01-0131556410.3390/econometrics3010055econometrics3010055On the Interpretation of Instrumental Variables in the Presence of Specification ErrorsP.A.V.B. Swamy0George S. Tavlas1Stephen G. Hall2Board of Governors of the Federal Reserve System (retired), Washington, DC, VA 22315, USABank of Greece, 21 El, Venizelos Ave, 102 50 Athens, GreeceBank of Greece, 21 El, Venizelos Ave, 102 50 Athens, GreeceThe method of instrumental variables (IV) and the generalized method of moments (GMM), and their applications to the estimation of errors-in-variables and simultaneous equations models in econometrics, require data on a sufficient number of instrumental variables that are both exogenous and relevant. We argue that, in general, such instruments (weak or strong) cannot exist.http://www.mdpi.com/2225-1146/3/1/55instrumental variablesgeneralized method of momentsrandom coefficient models
spellingShingle P.A.V.B. Swamy
George S. Tavlas
Stephen G. Hall
On the Interpretation of Instrumental Variables in the Presence of Specification Errors
Econometrics
instrumental variables
generalized method of moments
random coefficient models
title On the Interpretation of Instrumental Variables in the Presence of Specification Errors
title_full On the Interpretation of Instrumental Variables in the Presence of Specification Errors
title_fullStr On the Interpretation of Instrumental Variables in the Presence of Specification Errors
title_full_unstemmed On the Interpretation of Instrumental Variables in the Presence of Specification Errors
title_short On the Interpretation of Instrumental Variables in the Presence of Specification Errors
title_sort on the interpretation of instrumental variables in the presence of specification errors
topic instrumental variables
generalized method of moments
random coefficient models
url http://www.mdpi.com/2225-1146/3/1/55
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