Hello. I am not sure if the data I am working on are pooled cross section or panel data.The database includes 60 national elections of 14 countries in which non-residents were allowed to vote. The elections were held among 1993 and 2016. Variables include aggregate data such as electoral turn out of citizens living abroad, for each election in each country. My ID variable is country and my time variable is year. In some countries emigrants could vote once during that period while in other countries they could vote more than ten times. For most of the countries my database includes every election held were emigrants could vote, while for others I have missing data. Understanding if I have a panel or pooled cross sections is important to see if I have to deal or not with serial correlation residuals. Can anyone help me?
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