Do the non-stationary variables I(1) in the econometric model need to be cointegrated when using panel ARDL method?

I have six variables in the model , three of them are I(0), and the remaining variables are I(1), must I apply cointegration test in that case for the variables I(1) only, to be able to use ARDL...

02 March 2016 9,318 2 View