I'm developing a causality model in EViews. Can I proceed with Unrestricted VAR when the variables are not stationary at level and first difference?

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Mohamed Sherif

Hi Emerson,

In your case, I think, you have to use the 'Bounds testing approach'.

Hope this helps

Ette Etuk

No. Only stationary variables should be used. If a variable is not I(0) or I(1) check if it is I(2). If yes VAR may be applied. Otherwise it may not be.

Emerson Abraham Jackson

Only one of the variable is I(1)

What are the rest?

The rest of the two variables are I(2)