Hello experts of Statalist,

Sorry in advance for my inexperience. I am running "areg" for a panel database with survey data for different years and coded by country. In this sense, after including variables of interest and controls, I set to "cluster (code)" and "absorb (code)" to fix effects on a country level.

The database includes survey data from more than 100 countries, but the regression only returns 64 clusters. And so far is fine, since some of the surveys were shorter and there is no data for some variables in some countries. Still, I would like to know exactly which 64 countries are being clustered as it might represent a bias for my research.

Does it exist a post-estimation analysis or a procedure you could suggest me to identify them?

Thank you for your kind support.