Is stationarity necessary for panel data?

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Behrooz Gharleghi

Yes, it is necessary, LLC, IPS, Fisher tests can help to identify the unit root in your data.

Said Jaouadi

stationarity test are necessary for panel, if you make mutliple regression.

But, you could also make a cointegration relationship if the variables are integrated with first order. I(1)

Feng Xu

You should do the unit root test first. If the null hypohtesis of unit root isn't rejected, co-intergration analysis is needed; otherwise, regression is enough.

Priyanka Bharali

ok . thanks

Adiqa Kiani

kindly suggest do we apply stationarity test for panel data if we require SURE MODEL