Comparison of Local Projection Estimators for Proxy Vector Autoregressions

Martin Bruns and Helmut Lütkepohl

No 1949, Discussion Papers of DIW Berlin from DIW Berlin, German Institute for Economic Research

Abstract: Different local projection (LP) estimators for structural impulse responses of proxy vector autoregressions are reviewed and compared algebraically and with respect to their small sample suitability for inference. Conditions for numerical equivalence and similarities of some estimators are provided. A new LP type estimator is also proposed which is very easy to compute. Two generalized least squares (GLS) projection estimators are found to be more accurate than the other LP estimators in small samples. In particular, a lag-augmented GLS estimator tends to be superior to its competitors and to perform as well as a standard VAR estimator for sufficiently large samples.

Keywords: Structural vector autoregression; local projection; impulse responses; instrumental variable (search for similar items in EconPapers)
JEL-codes: C32 (search for similar items in EconPapers)
Pages: 37 , Anh. p.
Date: 2021
New Economics Papers: this item is included in nep-ore
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Related works:
Journal Article: Comparison of local projection estimators for proxy vector autoregressions (2022)
Working Paper: Comparison of Local Projection Estimators for Proxy Vector Autoregressions (2021)
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