Determinants of Production Efficiency of Maize-Dominated Farmers in Western Parts of Ethiopia in Gudeya Bila District: Evidence under Shifting Cultivation Area

Table 1

Estimation of the Cobb–Douglas frontier production function.

Ln output	Coefficient	Standard error	Z	P value>|z|
Ln of seed	0.38428595	0.117578	3.27	0.001
Ln of land	0.1887785	0.099584	1.9	0.058
Ln of labor	0.16310107	0.058564	2.78	0.005
Constants	1.5859073	0.37896	4.18	0
/lnsig2v	−2.34026	0.274023	−8.54	0
/lnsig2u	−1.92611	0.513121	−3.75	0
sigma_v	0.310327	0.042518
sigma_u	0.381725	0.097935
sigma2	0.242017	0.056329
Lambda	1.230072	0.134055

, , and refers to 10%, 5%, and 1% significance levels, respectively. Source: stochastic frontier model result.