Test for single-index composite quantile regression

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Hacettepe Journal of Mathematics and Statistics
Volume:43 Issue:5
Test for single-index composite quantile regression

Test for single-index composite quantile regression

Authors : Rong JİANG, Weimin QİAN, Zhangong ZHOU

Pages : 861-871

View : 35 | Download : 13

Publication Date : 2014-10-01

Article Type : Research Paper

Abstract :It is known that composite quantile regression estimator could be much more efficient and sometimes arbitrarily more efficient than the least squares estimator. In this paper, tests for the index parameter and index function in the single-index composite quantile regression are considered. The asymptotic behaviors of the proposed tests are established and their limiting null distributions are demonstrated to follow an asymptotically χ 2 -distribution. The simulation studies and a real data application are conducted to illustrate the finite sample performance of the proposed methods.
Keywords : Hypotheses test, Composite quantile regression, Single index model

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