%0 Journal Article
%T Liu Estimator in Semiparametric Partially Linear Varying Coefficient Models | Li | International Journal of Statistics and Probability | CCSE
%A Jing Li
%A Xueyan Li
%J International Journal of Statistics and Probability
%D 2019
%I 
%R 10.5539/ijsp.v8n6p69
%X This paper considers biased estimation for partially linear varying coefficient model to overcome the problem of multicollinearity. By the Liu estimation approach, we construct a profile Liu estimator for the constant coefficients. Furthermore, a restricted profile-Liu estimator is proposed for the situation that some additional linear restrictions are available. The properties of the proposed estimators are investigated
%U http://www.ccsenet.org/journal/index.php/ijsp/article/view/0/41294