st: Goodness of fit in panel data analysis

["I.Mosca" <I.Mosca@uvt.nl>]

When modeling a Fixed Effects Model (FEM) and/or a Random Effects Model (REM) Stata reports three different values for the R^2 statistics. 
The R^2 overall is the standard R^2 from regressing Y on X, but I'm not sure about the interpretation of R^2 between and R^2 within. What one should infer from these last two statistics?

Thanks for you help.


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