Hello, I have panel data between 1999-2022.
I did a cross-sectional dependency test on my variables, and all my variables were cross-sectionally dependent. After cross-section dependence, I performed the CIPS unit root test, one of the 2nd Generation Unit Root tests. In the CIPS test results, I concluded that some variables were stationary and some were not. Which test should I do now? Can I create a first difference series of my variables? Then can ı perform fixed, random or pooled regression?
I did a cross-sectional dependency test on my variables, and all my variables were cross-sectionally dependent. After cross-section dependence, I performed the CIPS unit root test, one of the 2nd Generation Unit Root tests. In the CIPS test results, I concluded that some variables were stationary and some were not. Which test should I do now? Can I create a first difference series of my variables? Then can ı perform fixed, random or pooled regression?
