Average and Quantile Effects in Nonseparable Panel Models
Name
Newey_Average and quantile.pdf
Size
723.82 KB
Format
Adobe PDF
Checksum (MD5)
01d010e6b83d9f94834457ac6014e683
Author(s)
Fernandez-Val, Ivan
Hahn, Jinyong
Chernozhukov, Victor V
Newey, Whitney K
Date Issued
March 2013
Journal
Econometrica
Publisher
The Econometric Society
Citation
Chernozhukov, Victor. et al. “Average and Quantile Effects in Nonseparable Panel Models.” Econometrica 81.2 (2013): 535–580.
Version
Author's final manuscript
Abstract
Nonseparable panel models are important in a variety of economic settings, including discrete choice. This paper gives identification and estimation results for nonseparable models under time-homogeneity conditions that are like “time is randomly assigned” or “time is an instrument.” Partial-identification results for average and quantile effects are given for discrete regressors, under static or dynamic conditions, in fully nonparametric and in semiparametric models, with time effects. It is shown that the usual, linear, fixed-effects estimator is not a consistent estimator of the identified average effect, and a consistent estimator is given. A simple estimator of identified quantile treatment effects is given, providing a solution to the important problem of estimating quantile treatment effects from panel data. Bounds for overall effects in static and dynamic models are given. The dynamic bounds provide a partial-identification solution to the important problem of estimating the effect of state dependence in the presence of unobserved heterogeneity. The impact of T, the number of time periods, is shown by deriving shrinkage rates for the identified set as T grows. We also consider semiparametric, discrete-choice models and find that semiparametric panel bounds can be much tighter than nonparametric bounds. Computationally convenient methods for semiparametric models are presented. We propose a novel inference method that applies in panel data and other settings and show that it produces uniformly valid confidence regions in large samples. We give empirical illustrations.
MIT Department
Massachusetts Institute of Technology. Department of Economics
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3982/ecta8405
