Partly linear instrumental variables regressions without smoothing on the instruments
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Jean-Pierre Florens [1] ; Elia Lapenta [2]
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[1] Esplanade de l’Université
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[2] Institut Polytechnique de Paris
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- Localización: Test: An Official Journal of the Spanish Society of Statistics and Operations Research, ISSN-e 1863-8260, ISSN 1133-0686, Vol. 33, Nº. 3, 2024, págs. 897-920
- Idioma: inglés
- DOI: 10.1007/s11749-024-00931-z
- Texto completo no disponible (Saber más ...)
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Resumen
We consider a semiparametric partly linear model identified by instrumental variables. We propose an estimation method that does not smooth on the instruments and we extend the Landweber–Fridman regularization scheme to the estimation of this semiparametric model. We then show the asymptotic normality of the parametric estimator and obtain the convergence rate for the nonparametric estimator. Our estimator that does not smooth on the instruments coincides with a typical estimator that does smooth on the instruments but keeps the respective bandwidth fixed as the sample size increases. We propose a data driven method for the selection of the regularization parameter, and in a simulation study we show the attractive performance of our estimators.
