Problem with xtunitroot llc: throws error r(2000) with strongy balanced panel

[Andres Vinueza]

I am using the Levin Lin Chiu test in Stata 17 to test for stationarity in a panel of 115 countries, from 1995 to 2015 with a delta of five years. This means N(115) * T(5)= 575 obs.


. xtunitroot llc Trade_to_GDP
no observations
r(2000);


I did the summary and describe of the variables and all are numeric. Also, the panel is strongly balanced. So I don´t understand why it says no obs.

Any help is appreciated, thank you!

[Nick Cox]

If interested please follow https://www.statalist.org/forums/for...panel-data-n-t

The question is already posted and answered on Reddit. Your dataset is too short for this test.

[Andres Vinueza]

Thank you for the reply!