panel data no observations r(2000)

[elena mengo]

Hello,

I would like to get some help regarding a panel data analysis I am try to run for my dissertation.

My aim is to analyse the relationship between CO2 emissions gdp, fdi and trade. I gathered all the data and I am trying to work with stata to analyse them; I used the commands xtset and xtreg since I am dealing with panel data. However, when I run the regression, this is what I get:

no observations

r(2000)

I suppose the problem regards the missing data (indeed there are several missing values) but I do not know how to deal with that. I know that there will be a workshop on panel data analysis at the end of July but I will be working that day so I will not be able to come. If you can suggest me how to proceed, I would really appreciate because at the moment I am stuck and I do not know how to come up with any solution.