Semiparametric time series regression modeling with a diverging number of parameters

Shengchao Zheng and Degao Li

Statistica Neerlandica, 2018, vol. 72, issue 2, 90-108

Abstract: Variable selection and error structure determination of a partially linear model with time series errors are important issues. In this paper, we investigate the regression coefficient and autoregressive order shrinkage and selection via the smoothly clipped absolute deviation penalty for a partially linear model with a divergent number of covariates and finite order autoregressive time series errors. Both consistency and asymptotic normality of the proposed penalized estimators are derived. The oracle property of the resultant estimators is proved. Simulation studies are carried out to assess the finite†sample performance of the proposed procedure. A real data analysis is made to illustrate the usefulness of the proposed procedure as well.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:bla:stanee:v:72:y:2018:i:2:p:90-108

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