TSCS with repeated time values within panel

[Leo Goe]

I want to do a TSCS-analysis with Stata for that I would like to use the tsset command. I have over 20 countries (and the parties in government) from the years 1990-2018. When I use the command tsset countrynumber year the error occurs: repeated time values within panel because sometimes there are more than one party in government leading to multiple observations per year per country sometimes. It is an unbalanced data set. I do not know which command I can use to tell Stata that my variables are pooled but that is "okay", so that I can do an TSCS with multiple observations per years sometimes.

The data looks like this:

Country	Year	Party
A	1990	Social democratic party
A	1991	Social democratic party
A	1992	Conservative party
A	1993	Conservative party
B	1990	Social democratic
B	1990	Conservative
B	1991	SOcial democratic
B	1992	Social democratic
C	1990	Conservative
C	1991	Christian Democratic
C	1991	Social Democratic
C	1991	Ecological party
C	1991	Communist
C	1992	SOcial Democratic

I hope someone can help me because I am quite new to Stata.

Best regards
Leo Goet

[Carlo Lazzaro]

Leo:
welcome to this forum.
You may consider to -tsset- yourv dataset with -idcode- only.
However, this will make time-series operators unvaliable.