学渣一枚%>_<%,请各位大神赐教~两个变量的面板数据,pedroni检验显示不存在协整,kao检验显示存在协整,怎么破?结果如下:
kao检验的
t-Statistic Prob.
ADF -3.069645 0.0011
Residual variance 0.004216
HAC variance 0.006380
pedroni检验的:
Alternative hypothesis: common AR coefs. (within-dimension)
Weighted
Statistic Prob. Statistic Prob.
Panel v-Statistic 0.254584 0.3995 -0.313774 0.6232
Panel rho-Statistic 0.738090 0.7698 1.266787 0.8974
Panel PP-Statistic 0.221754 0.5877 0.904437 0.8171
Panel ADF-Statistic 0.296837 0.6167 0.352926 0.6379
Alternative hypothesis: individual AR coefs. (between-dimension)
Statistic Prob.
Group rho-Statistic 3.138187 0.9992
Group PP-Statistic 2.545695 0.9945
Group ADF-Statistic 1.319491 0.9065


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