Independent Variables

Coefficients

Std. Error

t-ratio

Sig.

Constant

6.714***

0.334

20.08

0.000

Size of farm land (ha)

0.190***

0.016

11.70

0.000

Average productivity (Qt/ha)

0.320**

0.171

1.87

0.018

Total livestock (TLU)

0.530***

0.108

4.9

0.001

Non-farm income (Birr)

−0.020*

0.011

−1.82

0.102

Availability of family labour force

0.040

0.513

0.78

0.31

Education of the farmer (Grade)

0.060

0.15

0.4

0.635

R2

0.95

Adjusted R2

0.893

F-ratio

96.5