Hi, guys, thanks for reading my post.

I work with panel data (N dimension is much larger than T dimension), in sum around 4.500 observations - unbalanced panel.

I tested for individual effects, both fixed and random, and tests showed that individual effects are not statistically significant. After that I run F test for time fixed effects (testparm) and they turned out to be significant, so I included time dummies in model with "i.year".

My question is, when I include time dummies this way, do I change intercept in my regression model or slope of regression line?

King regards.

Jole