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NONPARAMETRIC INSTRUMENTAL VARIABLES AND REGULAR ESTIMATION

Published online by Cambridge University Press:  14 March 2017

Jinyong Hahn*
Affiliation:
University of California, Los Angeles
Zhipeng Liao
Affiliation:
University of California, Los Angeles
*
*Address correspondence to Jinyong Hahn, Department of Economics, UCLA, Box 951477, Los Angeles, CA 90095-1477, USA; e-mail: hahn@econ.ucla.edu.
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Abstract

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This paper investigates whether there can exist regular estimators in models characterized by nonparametric instrumental variable (NPIV). We show by a number of examples that regular estimation is impossible in general for nonlinear functionals.

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Type
ARTICLES
Copyright
Copyright © Cambridge University Press 2017