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st: xtivreg-- missing within R2


From   "Olga Gorbachev Melloni" <olga_gorbachev@hotmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: xtivreg-- missing within R2
Date   Tue, 31 Oct 2006 17:16:23 -0500

Hello, sorry for a stupid quesiton

I am trying to estimate an individual fixed effect regression with time dummies using xtivreg (due to endogeneity) but I am getting a dot in place of the within Rsq

Does anyone know what this means? Is it because the u_i are zero?
F test that all u_i=0: F(3914,26479) = 0.15 Prob > F = 1.0000


And I should be running a simple pooled regression instead of the fixed effects?


Olga Gorbachev Melloni

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