ANEXOS
121
. xtreg Producto Agua scala
Random-effects GLS regression
Number of obs
= 47
Group variable: modulo
Number of groups = 8
R-sq: within = 0.8107
Obs per group: min = 5
between = 0.9868
avg
= 5.9
overall = 0.9097 max
= 6
Wald chi2(2)
= 443.11
corr(u_i, X) = 0 (assumed)
Prob > chi2
= 0.0000
----------------------------------------------------------------------------------------------------------------------------------------------
Producto |
Coef.
Std. Err.
z
P>|z|
[95% Conf. Interval]
Agua
+ 2.378028 .1166807
20.38
0.000 2.149338
2.606718
scala
|
-149.5138
342.107 -0.44
0.662
-820.0311
521.0035
_cons
|
3541.089 1689.657
2.10
0.036
229.4213
6852.756
-------------- + ----------------------------------------------------------------------------------------------------------------------
sigma_u |
0
sigma_e |
4867.424
rho
|
0 (fraction of variance due to u_i)
----------------------------------------------------------------------------------------------------------------------------------------------
Modelo estimada con datos en panel, consiste de 8 modulos, y agrupados por año.
. xtset modulo anual
panel variable: modulo (unbalanced)
time variable: anual, 2009 to 2014, but with a gap
delta: 1 unit
. xtreg Producto Agua, fe
Fixed-effects (within) regression
Number of obs
= 47
Group variable: modulo
Number of groups
= 8
R-sq: within = 0.8107
Obs per group: min = 5
between = 0.9841 avg
= 5.9
overall = 0.9093
max
= 6
F(1,38)
= 162.78
corr(u_i, Xb) = 0.6354
Prob > F
= 0.0000
