1、E-G两步法中的残差检验不能用ADF检验临界值,请看下列Mackinnon(1991、1996)的文献
MacKinnon, James G. Critical Values for Cointegration Tests[A], Chapter 13 in R. F. Engle and C.W. J. Granger (eds.), Long-run Economic Relationships: Readings in Cointegration [M], Oxford: Oxford University Press,1991.
MacKinnon, James G. Numerical Distribution Functions for Unit Root and Cointegration Tests [J]. Journal of Applied Econometrics, 1996(11):601-618.
2、E-G两步法和Johansen检验适用范围不同,进行Johansen检验前必须建立VAR,详细地检验步骤和选项见(Johansen,1995)
Johansen, Søren.Likelihood-based Inference in Cointegrated Vector Autoregressive Models [M]. Oxford: Oxford University Press, 1995
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