Hi users
I'm running -xttobit- models, and getting output that I don't understand. Stata gives me a coefficient, but no std. err., conf. interval, etc.. Below you'll find both my command line and the output.
Thanks in advance.
Naceur
. xttobit lnq lnQ lnreus lnremq lnresk lnrehk lnrejp lnreau, ll(0) i(country)
Obtaining starting values for full model:
Iteration 0: log likelihood = -2867.2134
Iteration 1: log likelihood = -2867.1674
Iteration 2: log likelihood = -2867.1674
Fitting full model:
Iteration 0: log likelihood = -2901.366
Iteration 1: log likelihood = -2879.4362
Iteration 2: log likelihood = -2877.6783
Iteration 3: log likelihood = -2877.6649
Random-effects tobit regression Number of obs = 1146
Group variable (i): country Number of groups = 6
Random effects u_i ~ Gaussian Obs per group: min = 191
avg = 191.0
max = 191
Wald chi2(0) = .
Log likelihood = -2877.6649 Prob > chi2 = .
------------------------------------------------------------------------------
lnq | Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
lnQ | 1.248325 . . . . .
lnreus | -.9234277 . . . . .
lnremq | -.3511507 . . . . .
lnresk | -.8897338 . . . . .
lnrehk | 1.584254 . . . . .
lnrejp | -.7945153 . . . . .
lnreau | -9.899424 . . . . .
_cons | -50.13802 . . . . .
-------------+----------------------------------------------------------------
/sigma_u | 2.676205 . . . . .
/sigma_e | 3.325514 .0782069 42.52 0.000 3.172231 3.478797
-------------+----------------------------------------------------------------
rho | .3930644 . . .
------------------------------------------------------------------------------
Observation summary: 1039 uncensored observations
107 left-censored observations
0 right-censored observations
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
