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Table 3 Maximum likelihood estimates of stochastic frontier model

From: Impact of improved beehives technology adoption on honey production efficiency: empirical evidence from Southern Ethiopia

Input variables

Coefficients

Std.

p value

Constant

0.674**

0.146

0.000

Number hive (ln)

0.145***

0.028

0.000

Lab our use in (man-day) (ln)

0.042

0.057

0.468

Type of beehive used

0.488***

0.071

0.000

Bee forage cultivation (ln)

0.077

0.048

0.106

Proximity to natural forest

− 0.139**

0.037

0.000

Supplement used (ln)

0.004

0.025

0.880

Inefficiency variables

Constant

− 1.049

1.329

0.809

Sex household head (Hh)

0.741

0.536

0.345

Household size

0.106

0.066

0.109

Beekeeping experience of Hh

0.153*

0.085

0.071

Education level of Hh

− 0.081***

0.025

0.002

Cooperative member

− 2.856***

0.470

0.000

Distance to market

1.305

0.585

0.126

Participations in demonstration

− 1.684***

0.496

0.001

Extension contact per year

− 0.042**

0.019

0.034

Total income (ln)

0.236

0.441

0.592

Sigma square

0.153***

 

0.002

Gamma

0.435**

 

0.032

Log likelihood

− 213.888

  
  1. ***, ** and * denote significant at the 1, 5 and 10%, respectively