xtreg LnCI LnCO2 LnPop LnSIP LnPat LnPgdp,fe
Fixed-effects (within) regression Number of obs = 121
Group variable: city Number of groups = 11
R-sq: within = 0.9623 Obs per group: min = 11
between = 0.3999 avg = 11.0
overall = 0.4335 max = 11
F(5,105) = 536.41
corr(u_i, Xb) = -0.8746 Prob > F = 0.0000
------------------------------------------------------------------------------
LnCI | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
LnCO2 | .939315 .032132 29.23 0.000 .8756033 1.003027
LnPop | -2.041705 .6342232 -3.22 0.002 -3.299252 -.784157
LnSIP | .4620024 .1541316 3.00 0.003 .156388 .7676168
LnPat | -.110804 .0146688 -7.55 0.000 -.1398896 -.0817185
LnPgdp | -.6760868 .0427772 -15.80 0.000 -.7609061 -.5912676
_cons | 2.799468 3.899271 0.72 0.474 -4.932066 10.531
-------------+----------------------------------------------------------------
sigma_u | .73791163
sigma_e | .06084384
rho | .99324723 (fraction of variance due to u_i)
------------------------------------------------------------------------------
F test that all u_i=0: F(10, 105) = 7.85 Prob > F = 0.0000


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