English, Article, Journal or magazine article edition: Estimation of Nonparametric Conditional Moment Models With Possibly Nonsmooth Generalized Residuals Xiaohong Chen; Demian Pouzo

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Bookmark: http://trove.nla.gov.au/version/91927
Physical Description
  • preprint
Language
  • English

Edition details

Title
  • Estimation of Nonparametric Conditional Moment Models With Possibly Nonsmooth Generalized Residuals
Author
  • Xiaohong Chen
  • Demian Pouzo
Physical Description
  • preprint
Notes
  • This paper studies nonparametric estimation of conditional moment models in which the generalized residual functions can be nonsmooth in the unknown functions of endogenous variables. This is a nonparametric nonlinear instrumental variables (IV) problem. We propose a class of penalized sieve minimum distance (PSMD) estimators which are minimizers of a penalized empirical minimum distance criterion over a collection of sieve spaces that are dense in the infinite dimensional function parameter space. Some of the PSMD procedures use slowly growing finite dimensional sieves with flexible penalties or without any penalty; some use large dimensional sieves with lower semicompact and/​or convex penalties. We establish their consistency and the convergence rates in Banach space norms (such as a sup-norm or a root mean squared norm), allowing for possibly non-compact infinite dimensional parameter spaces. For both mildly and severely ill-posed nonlinear inverse problems, our convergence rates in Hilbert space norms (such as a root mean squared norm) achieve the known minimax optimal rate for the nonparametric mean IV regression. We illustrate the theory with a nonparametric additive quantile IV regression. We present a simulation study and an empirical application of estimating nonparametric quantile IV Engel curves.
  • Nonlinear ill-posed inverse, Penalized sieve minimum distance, Modulus of continuity, Convergence rate, Nonparametric additive quantile IV, Quantile IV Engel curves
  • RePEc:cwl:cwldpp:1650r
Language
  • English
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