1. Suppose the linear regression model is如果不恒成立,则称误差项是序列相关的(自相关的)。(serial correlation) 2.产生序列相关的原因及序列相关的影响 1)原因 (1)经济行为的惯性或冲击的惯性(SARS) (2)模型误设(Model misspecification) 2、序列相关对估计与检验的影响与异方差性类似
Chapter 3 Least Squares Methods for Estimating B Methods for estimat ing B Least squares estimation Maximum like lihood estimation Met hod of moments est imation Least a bsolute deviat ion est imation 3.1 Least squares estimation The criterion of the least squares estimation is