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AVERAGE DERIVATIVE ESTIMATION UNDER MEASUREMENT ERROR

Published online by Cambridge University Press:  13 November 2020

Hao Dong ,
Taisuke Otsu  and
Luke Taylor
Hao Dong
Affiliation:
Southern Methodist University
Taisuke Otsu*
Affiliation:
London School of Economics
Luke Taylor
Affiliation:
Aarhus University
*
Address correspondence to Taisuke Otsu, Department of Economics, London School of Economics, Houghton Street, London WC2A 2AE, UK; e-mail: [email protected].
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Abstract

In this paper, we derive the asymptotic properties of the density-weighted average derivative estimator when a regressor is contaminated with classical measurement error and the density of this error must be estimated. Average derivatives of conditional mean functions are used extensively in economics and statistics, most notably in semiparametric index models. As well as ordinary smooth measurement error, we provide results for supersmooth error distributions. This is a particularly important class of error distribution as it includes the Gaussian density. We show that under either type of measurement error, despite using nonparametric deconvolution techniques and an estimated error characteristic function, we are able to achieve a $\sqrt {n}$ -rate of convergence for the average derivative estimator. Interestingly, if the measurement error density is symmetric, the asymptotic variance of the average derivative estimator is the same irrespective of whether the error density is estimated or not. The promising finite sample performance of the estimator is shown through a Monte Carlo simulation.

Type
ARTICLES
Information
Econometric Theory , Volume 37 , Issue 5 , October 2021 , pp. 1004 - 1033
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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Footnotes

Financial support from the ERC Consolidator Grant (SNP 615882) (Otsu) and the AUFF Starting Grant (26852) (Taylor) is gratefully acknowledged.

References

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