Table 4 Maximum likelihood estimates of stochastic frontier model for onion crop production

Constant

β₀

2.168**

0.944

2.297

3.629*

1.293

2.805

Ln (Human labour)

β₁

-0.288***

0.169

-1.706

-0.141

0.202

-0.699

Ln (Machine labour)

β₂

0.028

0.038

0.731

-0.129***

0.078

-1.647

Ln (Seed)

β₃

0.127*

0.025

4.991

0.061

0.091

0.673

Ln (FYM)

β₄

0.042***

0.023

1.833

0.115***

0.064

1.783

Ln (Fertilizer)

β₅

0.341*

0.034

10.011

0.105

0.135

0.781

Ln (No. of sprays)

β₆

0.042***

0.024

1.727

0.100

0.125

0.802

Ln (Irrigation water)

β₇

0.086*

0.025

3.455

0.041

0.063

0.653

sigma-squared

σ²

0.004*

0.001

6.194

0.013*

0.001

10.604

gamma

γ

0.632*

0.136

4.644

0.7588

0.547

1.387

log likelihood function

357.87

177.15

LR test of one-sided error

133.42

106.87

Mean TE

0.92

0.65

Yield gap

3.15

16.02

Total sample size

240

240