A Bootstrap-Assisted Self-Normalization Approach to Inference in Cointegrating Regressions

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Hauptverfasser: Reichold, Karsten, Jentsch, Carsten
Format: Preprint
Veröffentlicht: 2022
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author Reichold, Karsten
Jentsch, Carsten
author_facet Reichold, Karsten
Jentsch, Carsten
contents Traditional inference in cointegrating regressions requires tuning parameter choices to estimate a long-run variance parameter. Even in case these choices are "optimal", the tests are severely size distorted. We propose a novel self-normalization approach, which leads to a nuisance parameter free limiting distribution without estimating the long-run variance parameter directly. This makes our self-normalized test tuning parameter free and considerably less prone to size distortions at the cost of only small power losses. In combination with an asymptotically justified vector autoregressive sieve bootstrap to construct critical values, the self-normalization approach shows further improvement in small to medium samples when the level of error serial correlation or regressor endogeneity is large. We illustrate the usefulness of the bootstrap-assisted self-normalized test in empirical applications by analyzing the validity of the Fisher effect in Germany and the United States.
format Preprint
id arxiv_https___arxiv_org_abs_2204_01373
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle A Bootstrap-Assisted Self-Normalization Approach to Inference in Cointegrating Regressions
Reichold, Karsten
Jentsch, Carsten
Econometrics
Statistics Theory
Traditional inference in cointegrating regressions requires tuning parameter choices to estimate a long-run variance parameter. Even in case these choices are "optimal", the tests are severely size distorted. We propose a novel self-normalization approach, which leads to a nuisance parameter free limiting distribution without estimating the long-run variance parameter directly. This makes our self-normalized test tuning parameter free and considerably less prone to size distortions at the cost of only small power losses. In combination with an asymptotically justified vector autoregressive sieve bootstrap to construct critical values, the self-normalization approach shows further improvement in small to medium samples when the level of error serial correlation or regressor endogeneity is large. We illustrate the usefulness of the bootstrap-assisted self-normalized test in empirical applications by analyzing the validity of the Fisher effect in Germany and the United States.
title A Bootstrap-Assisted Self-Normalization Approach to Inference in Cointegrating Regressions
topic Econometrics
Statistics Theory
url https://arxiv.org/abs/2204.01373