Functional instrumental variable regression with an application to estimating the impact of immigration on native wages

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Hauptverfasser: Seong, Dakyung, Seo, Won-Ki
Format: Preprint
Veröffentlicht: 2021
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author Seong, Dakyung
Seo, Won-Ki
author_facet Seong, Dakyung
Seo, Won-Ki
contents Functional linear regression gets its popularity as a statistical tool to study the relationship between function-valued response and exogenous explanatory variables. However, in practice, it is hard to expect that the explanatory variables of interest are perfectly exogenous, due to, for example, the presence of omitted variables and measurement error. Despite its empirical relevance, it was not until recently that this issue of endogeneity was studied in the literature on functional regression, and the development in this direction does not seem to sufficiently meet practitioners' needs; for example, this issue has been discussed with paying particular attention on consistent estimation and thus distributional properties of the proposed estimators still remain to be further explored. To fill this gap, this paper proposes new consistent FPCA-based instrumental variable estimators and develops their asymptotic properties in detail. Simulation experiments under a wide range of settings show that the proposed estimators perform considerably well. We apply our methodology to estimate the impact of immigration on native wages.
format Preprint
id arxiv_https___arxiv_org_abs_2110_12722
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Functional instrumental variable regression with an application to estimating the impact of immigration on native wages
Seong, Dakyung
Seo, Won-Ki
Econometrics
Methodology
Functional linear regression gets its popularity as a statistical tool to study the relationship between function-valued response and exogenous explanatory variables. However, in practice, it is hard to expect that the explanatory variables of interest are perfectly exogenous, due to, for example, the presence of omitted variables and measurement error. Despite its empirical relevance, it was not until recently that this issue of endogeneity was studied in the literature on functional regression, and the development in this direction does not seem to sufficiently meet practitioners' needs; for example, this issue has been discussed with paying particular attention on consistent estimation and thus distributional properties of the proposed estimators still remain to be further explored. To fill this gap, this paper proposes new consistent FPCA-based instrumental variable estimators and develops their asymptotic properties in detail. Simulation experiments under a wide range of settings show that the proposed estimators perform considerably well. We apply our methodology to estimate the impact of immigration on native wages.
title Functional instrumental variable regression with an application to estimating the impact of immigration on native wages
topic Econometrics
Methodology
url https://arxiv.org/abs/2110.12722