Agricultural Transition and Technical Efficiency: An Empirical Analysis of Wheat-Cultivating Farms in Samarkand Region, Uzbekistan


Table 3. Coefficients of Cobb-Douglas production function. Variables



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Table 3.
Coefficients of Cobb-Douglas production function.
Variables
Markings
Coefficients
Standard Error
t-Statistics
Intercept
2.45,677 ***
0.35.097
7.00
Ln (Seed)
ln
SD
0.20,888 **
0.10.781
1.94
Ln (Organic Fertilizer)
ln
OrFer
0.28,868 ***
0.04.984
5.79
Ln (Chemical Fertilizer)
ln
ChFer
0.22,029 ***
0.06/7419
3.43
Ln (Labor)
ln
LF
0.29,079 ***
0.1036.57
2.81
Adjusted R-squared
0.88
Number of observations
124
Note: **, *** Indicate significance at 1% and 5% level.
An input-oriented VRS DEA model was used to estimate overall technical (TECRS), pure technical
(TEVRS) and scale efficiencies of wheat-growing farmers. Table
4
shows the performance of wheat


Sustainability
2018
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10
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8 of 11
farms in study area. The estimated technical efficiency scores differ among sampled wheat farmers
and ranging from 0.53 to 1.0. Accordingly, out of 124 studied wheat farms, 9 farms under CRS and
21 farms under VRS were found fully efficient. Since, the highest technical efficiency achieved at score
1.0, model results can imply that, there is considerable room for increasing the technical efficiency
with the current production resources. The mean values of technical efficiency scores under CRS and
VRS were found 0.79 and 0.82 respectively, whereas sample farms with average technical efficiencies
may save their inputs by 21% and 18% while holding the same production level. Furthermore,
scale efficiencies were also calculated. Causes of inefficiencies are usually can be due to inappropriate
scale or misallocation of production resources. In this study, the mean scale efficiency of farms is
relatively high 0.96%, while they are operating near to their optimal size. Therefore, we propose that
farmers can improve their efficiency through saving of existing inputs.

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