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Table 5 Logit diversification of livelihood strategies model: maximum likelihood result (response variable, Y = 1 pastoralism and/or others, Y = 0 pastoralism only)

From: The invasion of Prosopis juliflora and Afar pastoral livelihoods in the Middle Awash area of Ethiopia

Explanatory variable Coefficient Std. error Marginal effect
Age of household head −0.036b 0.025 −0.006
Primary school dummy (1 = yes, 0 = no) 1.744b 0.717 0.314
Polygamy status (1 = yes, 0 = no) −0.202 0,802 −0.036
Family size 0.139 0.133 0.025
Livestock asset 0.025 0.023 0.005
Change in livestock asset −0.903b 0.034 −0.163
Perceived size of grazing land invasion (1 = above 2/3 is invaded, 0 = 2/3 or less is invaded) 0.987b 0.639 0.178
Division in which household is located (reference is Worer)    
Amibara −1.790a 0.854 −0.322
Awash Arba −0.257 0.889 −0.046
Halaideghe −2.483a 0.789 −0.447
Gewane 0.132 0.911 0.024
Sideha-Faghe −1.051 0.838 −0.189
Constant 1.318 1.169 0.204
Number of observations   142  
G   36.23a  
Log likelihood   −51.31  
  1. Marginal effect shows a change in probability in diversifying a household’s livelihood for a unit change in an explanatory variable
  2. aSignificant at 5 %
  3. bSignificant at 1 %