Testing endogeneity with high dimensional covariates
نویسندگان
چکیده
منابع مشابه
Testing Endogeneity with High Dimensional Covariates∗
Modern, high dimensional data has renewed investigation on instrumental variables (IV) analysis, primary focusing on estimation of the included endogenous variable under sparsity and little attention towards specification tests. This paper studies in high dimensions the Durbin-Wu-Hausman (DWH) test, a popular specification test for endogeneity in IV regression. We show, surprisingly, that the D...
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The Durbin-Wu-Hausman (DWH) test is a commonly used test for endogeneity in instrumental variables (IV) regression. Unfortunately, the DWH test depends, among other things, on assuming all the instruments are valid, a rarity in practice. In this paper, we show that the DWH test often has distorted size even if one IV is invalid. Also, the DWH test may have low power when many, possibly high dim...
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ژورنال
عنوان ژورنال: Journal of Econometrics
سال: 2018
ISSN: 0304-4076
DOI: 10.1016/j.jeconom.2018.07.002