Hello to everyone! :wave:
I should do some regressions but i've an important and simple question...
my dataset have this structure:
|geographic_area|year|sales|popolation|
Spain 2000 40 1000
Spain 2001 30 2000
Spain 2002 20 3000
Italy 2000 40 1000
Italy 2001 30 2000
Italy 2002 20 3000
I should investigate the relation between sales and popolation but i don't know if regress by year or not. If i do (sales regress to popolation) i consider the areas and the years aggregated but this make sense? or it is preferible to consider years separately?
Thanks a lot
:tup:
I should do some regressions but i've an important and simple question...
my dataset have this structure:
|geographic_area|year|sales|popolation|
Spain 2000 40 1000
Spain 2001 30 2000
Spain 2002 20 3000
Italy 2000 40 1000
Italy 2001 30 2000
Italy 2002 20 3000
I should investigate the relation between sales and popolation but i don't know if regress by year or not. If i do (sales regress to popolation) i consider the areas and the years aggregated but this make sense? or it is preferible to consider years separately?
Thanks a lot