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首页> 外文期刊>Journal of Time Series Analysis >TESTS FOR LONG-RUN GRANGER NON-CAUSALITY IN COINTEGRATED SYSTEMS
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TESTS FOR LONG-RUN GRANGER NON-CAUSALITY IN COINTEGRATED SYSTEMS

机译:混合系统中长时间运行的非因果关系测试

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摘要

In this article, we propose a new approach to test the hypothesis of long-run Granger non-causality in cointegrated systems. We circumvent the problem of singularity of the covariance matrix associated with the usual Wald-type test by proposing a generalized inverse procedure. A test for the ranks of submatrices of the cointegration matrix and its orthogonal matrix plays a vital role in our procedure. The relevant small-sample experiments indicate that the proposed method performs reasonably well in finite samples. As empirical applications, we examine long-run causal relations among long-term interest rates of three nations.
机译:在本文中,我们提出了一种新方法来检验协整系统中长期Granger非因果关系的假设。通过提出广义逆过程,我们规避了与通常的Wald型检验相关的协方差矩阵的奇异性问题。协整矩阵及其正交矩阵的子矩阵等级的测试在我们的过程中起着至关重要的作用。相关的小样本实验表明,该方法在有限样本中表现良好。作为经验应用,我们考察了三个国家长期利率之间的长期因果关系。

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