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计量经济模型中的异方差和序列相关问题
The Treatment of Heteroscedasticity and Serial Correlation in Econometric Models
【摘要】 通过分析两种违背计量经济模型基本假设的异方差和序列相关问题,以最小二乘法为主要方法,提出多种新型参数检验和参数修正的方法,从而提高计量模型的合理性和预测的有效性.
【Abstract】 Heteroscedasticity and serial correlation are theoretically analyzed on their inconsistency with the important assumptions of the econometric models. To improve those inconsistencies, several new measurements of parameter test and parameter correction are developed on base of the least-squares estimation. The results show that the new measurements can improve the rationality and efficiency of the econometric models.
【关键词】 计量经济模型;
异方差;
序列相关;
检验;
修正;
【Key words】 econometric models; heteroscedasticity; serial correlation; parameter test; parameter correction;
【Key words】 econometric models; heteroscedasticity; serial correlation; parameter test; parameter correction;
- 【文献出处】 中原工学院学报 ,Journal of Zhengzhou Institute Technology , 编辑部邮箱 ,2005年03期
- 【分类号】F224
- 【被引频次】4
- 【下载频次】770