Robust estimation for semiparametric spatial autoregressive models via weighted composite quantile regression

Xinrong Tang, Peixin Zhao, Xiaoshuang Zhou and Weijia Zhang

Communications in Statistics - Theory and Methods, 2024, vol. 54, issue 12, 3494-3511

Abstract: In this article, the robust estimation for a class of semiparametric spatial autoregressive models has been investigated. By combining the QR decomposition technique for matrix and the weighted composite quantile regression method, we propose a robust estimation procedure for the parametric and non parametric components. Under certain regularity conditions, asymptotic properties of the resulting estimators are proved. Several simulation analyses have been conducted for further illustrating the performance of the proposed method, and the simulation results demonstrate that the proposed method improve the robustness of the models.

Date: 2024
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DOI: 10.1080/03610926.2024.2395881

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