Dear Stata-Listers,
I have the feeling that the solution is quite easy. However, I just can't figure it out.
So, I have cross sectional data for regional districts in Germany with differing observations per year, for the years 2012 to 2015.
The variable A is asked in the years 2014 and 2015.
A year district
When:
reg A year
I get beta=60.9
What I would like to do now is set variable A in the year 2013 to A(2014)-60.9 for each district separately.
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