Hello everyone!
My name is Tobi and i want to ask you to help me.
In my panel data a RE model was chosen as the best model than a FE model and Pooled regression model.
I've conducted tests on autocorrelation, heteroskedasticity and serial correlation.
and results showed I had these problems.

I decided to use robust standard errors but then my control variables became insignificant !
could someone please advise as to why that is happening ?