Research Article

Rural Households’ Demand Status for Mitigation of Prosopis juliflora (Sw.) DC Invasion and Its Determinant Factors in Ethiopia: Empirical Evidence from Afar National Regional State

Table 4

Determinants of rural households’ WTP in P. juliflora management.

VariablesWTP1WTP2Joint marginal effect
CoefficientRobust std. errCoefficientRobust std. err

Initial bid (Bid1)−0.007530.03570.0000
Follow-up bid (Bid2)−0.04430.0188−0.0024
Age of the HH−0.04220.0326−0.07630.0158−0.0041
Sex of the HH0.83030.4327−0.14710.3502−0.0071
Education level of the HH0.22260.08170.09580.09370.0052
Annual farm income (ln)−0.38780.59640.41520.34310.0225
Non/off-farm income−0.00000.0000−0.00000.0000
Security of tenure4.94361.09411.94970.51500.0705
Past awareness0.25440.48700.21990.33860.0130
Freq. of extension contact0.38020.15570.07320.03830.0040
Distance from the market0.00110.00450.00290.00190.0001
Farming experience0.01600.1793−0.00230.0161−0.0001
Years lived in the area0.00800.01490.03800.01450.0021
Size of own land−0.41370.2963−0.15430.1717−0.0083
Family size in AE0.12000.17600.77860.12380.0421
Dependency ratio−0.08030.2345−0.16650.1496−0.0090
Livestock holding (TLU)0.08440.02670.02620.01000.0014

Cons4.83246.1592−3.77263.4970

Number of observation = 313
Log-pseudo-likelihood = −79.33
Wald chi2 (32) = 664.97
Prob > chi2 = 0.0000
Rho = 0.729
Wald’s test of rho = 0: chi2 (1) = 0.8004
Prob > chi2 = 0.0371
y = Pr (WTP1 = 1, WTP2 = 1) (predict, p11) = 0.977

, , and show significant variables at 1%, 5%, and 10% probability levels, respectively. Source: own survey results, 2021.