I am really confused on how to interprete these 3 different models.
Can anyone explain this to me with the help of this little example maybe.
I was thinking that i would test the relationship between sunshine and sales.
Let us say that in my basic model without controlling for user heterogeneity, sunshine negatively effects sales.
Location fixed-effects: Let us say that in this model sunshine is no longer significant. What would that mean for the interpretation? Would that suggest, that sunshine is only important for different locations?
Random effects Let us say that in this model sunshine is no longer significant. What would that mean for the interpretation?
Fixed effects Let us say that in this model sunshine is no longer significant. What would that mean for the interpretation?
Thank you very much in advance, any literature would also be intresting.