Abstract
This paper considers the efficient estimation for a parametric regression model. For parameters estimation, three estimation methods for the parameters are proposed. These estimators are the semi-parametric profile nonlinear least squares estimators, the nonlinear least squares estimators and one-step estimators. We study the asymptotic properties of the proposed estimators, and further discuss their estimation efficiency. The asymptotic normal confidence intervals and empirical likelihood confidence intervals are also proposed for parameters. Simulation studies are conducted to compare the proposed estimation methods.
Acknowledgments
The authors thank the editor, the associate editor, and two referees for their constructive suggestions that helped us to improve the early manuscript.