I am working with a panel model and I am looking to see if the variables are stationary. With a study of 11 countries and quarterly data for 2000 Q1 -2018Q4. With the Levin-Lin-Chiu tests, I get this output "Levin-Lin-Chiu test requires strongly balanced data" r (498) and "Levin-Lin-Chiu test cannot have gaps in data"
r (498) for other variables. I didn't quite understand what to do. thank you for helping me.
r (498) for other variables. I didn't quite understand what to do. thank you for helping me.
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