xtset nam year
panel variable: nam (strongly balanced) 红字标注
time variable: year, 2009 to 2013
delta: 1 unit
. xttobit crste gjczylzc gdp ylbjjgzs ylwsjg zylxrsb jjsr jjljjy zgzgpjgz jjzc cbrs cblxrs,ul(cblxrs)
Obtaining starting values for full model:
Iteration 0: log likelihood = 47.086417
Iteration 1: log likelihood = 47.500079
Iteration 2: log likelihood = 47.515395
Iteration 3: log likelihood = 47.51542
Fitting full model:
Iteration 0: log likelihood = 42.325011
Iteration 1: log likelihood = 42.340477
Iteration 2: log likelihood = 42.340483
Iteration 3: log likelihood = 42.340483
Random-effects tobit regression Number of obs = 160
Group variable: nam Number of groups = 32
Random effects u_i ~ Gaussian Obs per group: min = 5
avg = 5.0
max = 5
Integration method: mvaghermite Integration points = 12
Wald chi2(11) = 33.58
Log likelihood = 42.340483 Prob > chi2 = 0.0004
crste Coef. Std. Err. z P>z [95% Conf. Interval]
gjczylzc -.5574878 .191964 -2.90 0.004 -.9337304 -.1812453
gdp -.0337826 .1806104 -0.19 0.852 -.3877725 .3202074
ylbjjgzs 1.672609 2.686869 0.62 0.534 -3.593558 6.938775
ylwsjg .2664867 .1302676 2.05 0.041 .0111669 .5218064
zylxrsb -.1190865 .0728362 -1.63 0.102 -.2618428 .0236698
jjsr -.1134638 .503364 -0.23 0.822 -1.100039 .8731116
jjljjy .1306367 .1885662 0.69 0.488 -.2389463 .5002198
zgzgpjgz -.4197651 .3804408 -1.10 0.270 -1.165415 .3258852
jjzc 1.004797 .4218833 2.38 0.017 .1779205 1.831673
cbrs .5106113 .9375501 0.54 0.586 -1.326953 2.348176
cblxrs -1.201225 .8418804 -1.43 0.154 -2.85128 .4488303
_cons -4.919232 5.943738 -0.83 0.408 -16.56874 6.730281
/sigma_u .0527298 .0242508 2.17 0.030 .0051991 .1002604
/sigma_e .1742729 .0110947 15.71 0.000 .1525277 .1960181
rho .0838704 .074508 .0099712 .3330274
Observation summary: 0 left-censored observations
155 uncensored observations
5 right-censored observations
效果是不怎么好。。。