Time-invariant inefficiency model Number of obs = 493
Group variable: code Number of groups = 29
Obs per group: min = 17
avg = 17
max = 17
Wald chi2(2) = 12334.70
Log likelihood = 344.30988 Prob > chi2 = 0.0000
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gdp | Coef. Std. Err. z P>|z| [95% Conf. Interval]
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cap | .7929309 .0089779 88.32 0.000 .7753345 .8105273
lab | .358654 .0608994 5.89 0.000 .2392933 .4780147
_cons | 1.15364 .4426052 2.61 0.009 .2861494 2.02113
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/mu | 1.282116 .1829066 7.01 0.000 .9236256 1.640607
/lnsigma2 | -1.575981 .2654147 -5.94 0.000 -2.096185 -1.055778
/ilgtgamma | 2.946466 .2874346 10.25 0.000 2.383104 3.509827
-------------+----------------------------------------------------------------
sigma2 | .2068045 .0548889 .1229245 .3479215
gamma | .9500962 .0136283 .9155298 .9709661
sigma_u2 | .1964841 .0548896 .0889025 .3040658
sigma_v2 | .0103203 .000678 .0089915 .0116491
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