0
votes
1answer
38 views

Common or regional time dummies as controls: Does it make a difference?

I am analyzing policy diffusion using panel data, and the inclusion of temporal controls substantially influences my results. I'm wondering if it can theoretically make a difference for the estimates ...
5
votes
3answers
1k views

How to control for market return in an (SPSS) OLS?

Please consider the following panel dataset: ...