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Hello, In testing a variable for non-stationarity, I am not sure whether in the list of options of the ADF test I can drop the intercept in case it is not statistically significant (assuming the trend is already non significant). Therefore, in this case, I would select "none" in the list o...

Hi,

I am trying to estimate a model, and I am dealing with variables having different order of integration (I(0), I(1), and I(2)). Using an autoregressive distributed lag model would be the best choice in this case?

Thank you very much!!

Hi, I am trying to estimate a regression where all variables are I(1) with the exception of one, which is I(2). In order to assure that all variables have the same order of integration, is the only solution transforming the variable that is I(2) in first differences in order to make it I(1)? Would i...