Order

Variable

Intercept

t Stat

P-value

1

Intercept of freedom

−4.5713***

−8.362

0.0000

2

Coffee production area (ha)

0.3422***

7.166

0.0000

3

Capital for coffee production (mil.dong)

0.2868***

9.158

0.0000

4

Labor (man-day)

0.7499***

6.079

0.0000

5

Irrigation methods (1-suitable; 0-unsuitable)

−0.0007

−1.106

0.2712

6

Fertilizer application(1-suitable; 0-unsuitable)

0.0787***

2.183

0.0295

7

Encourage agriculture (1-yes; 0-no)

0.1241***

4.305

0.0000

8

Soil erosion mitigation (1-yes; 0-no)

0.0593**

2.197

0.0285

9

Shaded trees (1-yes; 0-no)

0.0315

1.190

0.2348