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A Heteroskedasticity-Robust Overidentifying Restriction Test with High-Dimensional Covariates

Qingliang Fan, Zijian Guo, Ziwei Mei

arXiv 30 Apr 2022 · Econometrics · publishedJournal of Business and Economic Statistics (2024) · 3 citations (OpenAlex)

arXiv:2205.00171 · PDF · DOI · OpenAlex · Extracted main text

Abstract

This paper proposes an overidentifying restriction test for high-dimensional linear instrumental variable models. The novelty of the proposed test is that it allows the number of covariates and instruments to be larger than the sample size. The test is scale-invariant and is robust to heteroskedastic errors. To construct the final test statistic, we first introduce a test based on the maximum norm of multiple parameters that could be high-dimensional. The theoretical power based on the maximum norm is higher than that in the modified Cragg-Donald test (Koles\'{a}r, 2018), the only existing test allowing for large-dimensional covariates. Second, following the principle of power enhancement (Fan et al., 2015), we introduce the power-enhanced test, with an asymptotically zero component used to enhance the power to detect some extreme alternatives with many locally invalid instruments. Finally, an empirical example of the trade and economic growth nexus demonstrates the usefulness of the proposed test.

Citation extraction

49
references
105
in-text mentions
49
distinct cited
9
self-citations
31,728
main-text words

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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Kolesár, M (2018) Minimum distance approach to inference with many instruments1.000164100%
2Chernozhukov, V., Chetverikov, D., and Kato, K (2013) Gaussian approximations and multiplier bootstrap for maxima of sums of high-dimensional random vectors1.000103100%
3Belloni, A., Chernozhukov, V., and Hansen, C (2014) Inference on treatment effects after selection among high-dimensional controls0.92843100%
4Javanmard, A. and Montanari, A (2014) Confidence intervals and hypothesis testing for high-dimensional regression0.87452100%
5Chao, J. C., Hausman, J. A., Newey, W. K., Swanson, N. R., and Woute… (2014) Testing overidentifying restrictions with many instruments and heteroskedasticity0.84333100%
6Fan, J., Liao, Y., and Yao, J (2015) Power enhancement in high-dimensional cross-sectional tests0.84333100%
7Zhang, X. and Cheng, G (2017) Simultaneous inference for high-dimensional linear models0.84333100%
8Gold, D., Lederer, J., and Tao, J (2020) Inference for high-dimensional instrumental variables regression0.81142100%
9Fan, Q. and Zhong, W (2018) Nonparametric additive instrumental variable estimator: A group shrinkage estimation perspective self0.64441100%
10Belloni, A., Hansen, C., and Newey, W (2022) High-dimensional linear models with many endogenous variables0.64422100%

Showing the top 10 of 49 scored citations.

Cited by, within the corpus

arXiv econ.EM papers that cite this one, ranked by how heavily they lean on it.

Citing paperIntensityMentionsSections
1Inference for Nonlinear Endogenous Treatment Effects Accounting for High-Dimensional Covariate Complexity0.64422
2Enhanced power enhancements for testing many moment equalities: Beyond the $2$- and $$-norm0.40511