J4 ›› 2011, Vol. 49 ›› Issue (03): 447-451.

• 数学 • 上一篇    下一篇

序约束下AR(2)模型参数的拟似然估计

齐芯1,2, 王德辉2   

  1. 1. 吉林大学 珠海学院, 广东 珠海 519041|2. 吉林大学 数学研究所, 长春 130012
  • 收稿日期:2010-09-25 出版日期:2011-05-26 发布日期:2011-06-15
  • 通讯作者: 王德辉 E-mail:Wangdh@jlu.edu.cn

Quasilikelihood Estimation of Parameters inAR(2) Model under Order Restriction

QI Xin1,2, WANG Dehui2   

  1. 1. College of Zhuhai, Jilin Universty, Zhuhai 519041, Guangdong Province, China;2. Institute of Mathematics, Jilin University, Changchun 130012, China
  • Received:2010-09-25 Online:2011-05-26 Published:2011-06-15
  • Contact: WANG Dehui E-mail:Wangdh@jlu.edu.cn

摘要:

在约束条件下利用拟似然估计方法对AR(2)模型的参数进行统计推断, 研究了拟似然估计a*的相合性及渐近正态性, 并给出了AR(2)模型参数序关系的假设检验方法及模拟结果.

关键词: 拟似然估计, 序约束, 假设检验

Abstract:

We studied the parameter estimation  for AR(2) model under simple order restriction via quasilikelihood method. The strong consistency and asymptotic property of quasilikelihood estimator [WTHX]〖AKα^〗[WT] and the restriction quasi-likelihood  estimator  a* were discussed. Furthermore, we considered the problem of testing homogeneity of parameters against the simple order restriction, and also gave a simulation.

Key words: quasi-likelihood estimation, order restriction, hypothesis testing

中图分类号: 

  • O212.1