Table 1.
Description and descriptive statistics of explanatory variables used in the analysis.
| Variables | Variable description | Mean |
Mean difference | t-value | Overall SD | ||
|---|---|---|---|---|---|---|---|
| Overall sample | Adopters | Non-adopters | |||||
| Socio-economic characteristics | |||||||
| HHSEX | 1 if the household head is male, 0 otherwise | 0.88 | 0.89 | 0.87 | -0.02 | -0.566 | - |
| HHSIZE | Household size (in number) | 7.02 | 7.40 | 6.64 | -0.76 | -3.319∗∗∗ | 2.34 |
| HHAGE | Age of household head (in years) | 42.18 | 41.49 | 42.86 | 1.37 | 1.030 | 13.42 |
| EDUCHEAD | Household head's years of education | 3.43 | 3.21 | 3.65 | 0.43 | 1.303 | 3.33 |
| EDUCSPOUSE | Spouse's years of education | 1.65 | 1.34 | 1.95 | 0.61 | 2.502∗∗ | 2.48 |
| FARMEXP | Farming experience (in years) | 22.73 | 22.64 | 22.82 | 0.18 | 0.153 | 11.88 |
| LANDSIZE | Total landholding size (in hectare) | 1.40 | 1.67 | 1.13 | -0.53 | -4.817∗∗∗ | 1.14 |
| LIVSTOCK | Total livestock (in tropical livestock unit) | 4.22 | 5.15 | 3.29 | -1.86 | -5.339∗∗∗ | 3.62 |
| TAV | Total value of assets (in ‘000’ Birr) | 75.01 | 96.86 | 53.37 | -43.49 | -6.246∗∗∗ | 73.19 |
| NONFARM | 1 if the household participates in non-farm activity, 0 otherwise | 0.26 | 0.25 | 0.27 | 0.02 | 0.396 | - |
| Institutional factors | |||||||
| CREDIT | 1 if the household access credit, 0 otherwise | 0.11 | 0.09 | 0.13 | 0.04 | 1.217 | - |
| SAVING | 1 if the household practice saving, 0 otherwise | 0.54 | 0.60 | 0.47 | -0.13 | -2.617∗∗ | - |
| EXTFREQ | Frequency of extension contact (in days per year) | 11.49 | 16.02 | 7.00 | -9.02 | -5.943∗∗∗ | 15.89 |
| Parcel characteristics | |||||||
| FERTINDEX | Parcel average fertility indexa | 0.59 | 0.57 | 0.61 | 0.04 | 1.217 | 0.30 |
| SLOPEINDEX | Parcel average terrain indexb | 0.73 | 0.71 | 0.75 | 0.05 | 1.960 | 0.24 |
| EROSIOINDEX | Parcel average erosion indexc | 0.70 | 0.69 | 0.71 | 0.01 | 0.544 | 0.27 |
| Climate characteristics | |||||||
| BELG | 1 if the household cultivates in Belgd season, 0 otherwise | 0.62 | 0.62 | 0.62 | 0.00 | -0.025 | - |
| CCNOTICE | 1 if the household noticed climate change during the last 10–15 years, 0 otherwise | 0.61 | 0.73 | 0.49 | -0.24 | -5.064∗∗∗ | - |
| SHOCK | 1 if the household faces shocks during the last five years, 0 otherwise | 0.23 | 0.21 | 0.25 | 0.04 | 0.886 | - |
| AEZ dummies | |||||||
| HIGHLANDe | 1 if the household lives in highland AEZ, 0 otherwise | 33.17 | 0.33 | 0.33 | 0.01 | 0.141 | - |
| MIDLANDe | 1 if the household lives in midland AEZ, 0 otherwise | 33.66 | 0.33 | 0.34 | 0.01 | 0.139 | - |
SD is standard deviation.
Farmer ranked each parcel as “poor” (value = 1), “medium” (value = 2) and “fertile” (value = 3).
Farmer ranked each parcel as “sloppy” (value = 1), “medium” (value = 2) and “flat” (value = 3).
Farmer ranked each parcel as “severe” (value = 1), “moderate” (value = 2) and low (value = 3).
Belg is agricultural cultivation season which is equivalent to autumn in southern hemisphere.
LOWLAND is the reference category.