[Limdep Nlogit List] Status=3
Rinaldi, Gustavo
gustavo.rinaldi at imperial.ac.uk
Fri Aug 11 23:57:55 EST 2006
Hi,
the exit code of the following frontier model is 3.
I understand (R9-8) that this means "Failure, unable to maximize function."
Is there anything I can do to change this situation?
Regards,
Gustavo
_____________________________________________________________________
FRONTIER;Lhs=LN_PRODU;
Rhs=LN_L,LN_K,
LN2_L,LN2_K,
K_L,one;
Test:b(4)=0,b(5)=0,b(3)=0$ FRONTIER TRASLOG CROSS RST2
Initial iterations cannot improve function.Status=3
Error 805: Initial iterations cannot improve function.Status=3
Function= .22622235085D+04, at entry, .49722252678D+03 at exit
+---------------------------------------------+
| Limited Dependent Variable Model - FRONTIER |
| Maximum Likelihood Estimates |
| Model estimated: Aug 11, 2006 at 11:58:49AM.|
| Dependent variable LN_PRODU |
| Weighting variable None |
| Number of observations 203 |
| Iterations completed 2 |
| Log likelihood function -497.2149 |
| Variances: Sigma-squared(v)= .02633 |
| Sigma-squared(u)= 3.20225 |
| Sigma(v) = .16226 |
| Sigma(u) = 1.78948 |
| Sigma = Sqr[(s^2(u)+s^2(v)]= 1.79683 |
| Stochastic Production Frontier, e=v-u. |
| Wald test of 3 linear restrictions |
| Chi-squared = 35.43, Sig. level = .00000 |
+---------------------------------------------+
+---------+--------------+----------------+--------+---------+----------+
|Variable | Coefficient | Standard Error |b/St.Er.|P[|Z|>z] | Mean of X|
+---------+--------------+----------------+--------+---------+----------+
Primary Index Equation for Model
LN_L 2.54640815 .30973363 8.221 .0000 5.51824212
LN_K -.02600649 .18146484 -.143 .8860 8.15964051
LN2_L .10176152 .13969896 .728 .4663 15.8225152
LN2_K .01199545 .04507462 .266 .7901 34.7817688
K_L -.13758592 .08692816 -1.583 .1135 46.5146215
Constant .85802354 1.03652059 .828 .4078
Variance parameters for compound error
Lambda 11.0286253 1.26629538 8.709 .0000
Sigma 1.79682569 .06680185 26.898 .0000
______________________________________________________________
Dr. Gustavo Rinaldi
Tanaka Business School
Imperial College
South Kensington Campus
SW7 2AZ London UK
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