Determinants of Production Efficiency of Maize-Dominated Farmers in Western Parts of Ethiopia in Gudeya Bila District: Evidence under Shifting Cultivation Area
Table 2
Estimation of cost functions.
Ln cost of output
Coefficient
Standard error
Z
P value > z
Ln of output
0.47646531
0.1013794
4.70
0.000
Ln cost of seed
0.32506669
0.1603711
2.03
0.043
Ln cost of land
0.34094717
0.1341895
−2.54
0.011
Ln cost of labor
0.02229082
0.0804879
−0.28
0.782
Constant
8.3712285
0.8062753
10.38
0.000
/lnsig2v
−1.413302
0.1241996
/lnsig2u
−7.619796
67.22597
sigma_v
0.4932936
0.0306334
sigma_u
0.0221504
0.7445425
sigma2
0.2438292
0.0348104
Lambda
0.0449032
0.757197
,, and refers to10%, 5%, and 1% significance levels, respectively. Source: stochastic cost frontier model result.