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Table 2 Comparison of coefficients obtained from three stages

From: Factors affecting efficiency of cotton producers in rural Khorezm, Uzbekistan: Re-examining the role of knowledge indicators in technical efficiency improvement

   1stStep 2ndStep 3rdStep
MLE Coeff. SE MDE Coeff. Diff. Diff/SE Adj. Coeff.
Constant β0 2.443 0.306 *** 2.257 −0.186 −0.609 2.246
Ln (Diesel) β1 0.565 0.216 *** 0.527 −0.038 −0.127 0.522
Ln (Labour) β2 0.281 0.109 ** 0.192 −0.089 −0.295 0.190
Ln (Nitrogen) β3 0.834 0.290 *** 0.606 −0.228 −0.753 0.600
Ln(Diesel)*Ln(Diesel) β11 0.157 0.104 NS 0.138 −0.018 −0.060 0.137
Ln(Diesel)*Ln(Labour) β12 0.056 0.034 * 0.035 −0.021 −0.070 0.034
Ln(Diesel)*Ln(Nitrogen) β13 0.125 0.066 * 0.107 −0.017 −0.057 0.106
Ln(Labour)*Ln(Labour) β22 −0.089 0.048 * −0.055 0.034 0.111 −0.054
Ln(Labour)*Ln(Nitrogen) β23 0.038 0.046 NS 0.020 −0.018 −0.059 0.020
Ln(Nitrogen)*Ln(Nitrogen) β33 0.300 0.171 * 0.173 −0.126 −0.417 0.172
  1. Note:***, **, *indicates significance at the 1, 5 and 10% levels, respectively.