我做协整检验时,有两个协整关系。该如何建向量误差修正模型(VEC模型)呢?是不是要建立两个模型呢。我看到的例子都是只有一个协整关系,建立一个VEC模型。那位高手给解答一下?先在这谢谢了。
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楼主: gengliyan
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[求助]建立VEC模型的问题(急) |
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博士生 29%
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回帖推荐josh19701008 发表于2楼 查看完整内容 Not necessary.
Basically, it is up to the theory (or long run relationship) you want to test.
If you only need one relationship, and you can recognize which vector fits the
correct signs, you can only select one cointegration vector to build a single equation ECM.
If no prior theory is subject, you can apply it to VECM, which has more than one equations.
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