Dear all,
I am using an unbalanced panel data, where some individuals are missing in
certain years. My problem is that I need to know exactly what are the years
for which each individual is missing, and the database is too large to proceed
simply by inspecting the data...is there a way to generate a new variable,
telling the existing (or missing) years for each individual?
Thank you very much for your help
Kind Regards
Mariarosaria
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