Variables	Principal Components
Variables	1	2	3	4	5	6	7
V₁ = Altitude (msnm)	0.164	0.115	−0.148	−0.320	−0.185	0.616	0.257
V₂ = Household members (No.)	0.140	0.219	−0.297	−0.110	−0.031	−0.479	0.531
V₃ = Experience as an agricultural producer (years)	0.343	−0.275	0.575	0.164	0.153	0.071	−0.040
V₄ = Age of head of household (years)	0.133	−0.420	0.631	0.170	0.205	−0.043	0.049
V₅ = Schooling of the head of household (years)	−0.006	0.195	−0.540	−0.055	−0.171	0.188	−0.316
V₆ = Total property area (ha)	0.710	−0.136	−0.032	0.371	−0.461	−0.032	0.094
V₇ = Area dedicated to agriculture (ha)	0.304	−0.146	−0.094	0.595	−0.552	0.038	0.176
V₈ = Area dedicated to livestock (ha)	0.853	−0.118	0.016	0.032	−0.048	−0.093	0.027
V₉ = Households that have irrigation water (%)	0.222	0.758	0.478	−0.146	−0.127	0.065	−0.022
V₁₀ = Households with sufficient irrigation water (%)	0.259	0.749	0.412	−0.125	−0.071	0.057	−0.079
V₁₁ = Households that have water reservoirs (%)	0.228	0.515	0.320	−0.159	−0.270	−0.215	0.056
V₁₂ = Percentage of technology use in agriculture (%)	−0.146	0.522	−0.134	0.402	0.226	−0.048	0.162
V₁₃ = Households that manage pastures (%)	0.655	−0.083	−0.042	−0.057	0.014	0.313	−0.321
V₁₄ = Cows in milk production (No.)	0.796	−0.072	−0.156	−0.270	0.202	−0.176	0.052
V₁₅ = Male bovines (No.)	0.646	−0.134	0.117	0.098	−0.046	0.043	0.002
V₁₆ = Milk production (l animal⁻¹ day⁻¹)	0.856	−0.056	−0.153	−0.210	0.138	0.094	−0.072
V₁₇ = Total milk production (l∙day⁻¹)	0.759	−0.061	−0.134	−0.274	0.262	−0.170	0.123
V₁₈ = Amount received as credit (US∙$)	0.139	0.054	−0.319	−0.150	0.041	0.123	0.207
V₁₉ = Amount received for migration (US∙$∙year⁻¹)	−0.055	0.003	0.148	0.161	0.289	0.501	0.602
V₂₀ = Households that received technical assistance (%)	0.290	0.481	−0.217	0.430	0.255	0.107	−0.112
V₂₁ = Households that participated in training courses (%)	0.283	0.300	−0.219	0.558	0.393	−0.043	−0.164