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楼主: littletree-zou
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单位根检验与异方差 |
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初中生 47%
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回帖推荐By the result of unit root test, you can argue that the difference is stationary (or I(0)). The conditional hetereoskedasticity doesn't affect the result of unit root test. But unconditional hetereoskedasticity affect the result of unit root test. Unit root test can't detect hetereoskedasticity, it just test whether its autocorrelation is 1 or not.
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