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Smoothed quantile regression for panel data
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DOI：10.1016/j.jeconom.2016.01.008.png)
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This paper studies fixed effects estimation of quantile regression models for panel data. Under an asymptotic framework where both the numbers of individuals and time periods grow at the same rate, we show that the fixed-effects estimator for the smoothed objective function has a limiting normal distribution with a bias in the mean, and provide the analytic form of the asymptotic bias. We propose a one-step bias correction estimator based on the analytic bias formula obtained from the asymptotic analysis. Importantly, our results cover the case that observations are dependent over time. We illustrate the effects of the bias correction through simulations. (C) 2016 Elsevier B.V. All rights reserved.
Keyword:
Bias correction
Incidental parameters problem
Panel data
Quantile regression
Smoothing
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