Research, Policy and Practice
Table 1 Variable definitions and measurement
Variable | Type and definition | Measurement | |
|---|---|---|---|
Dependent variable | |||
TREATMENT | Dummy, invasion by Prosopis | 1 for invaded households, 0 otherwise | |
Outcome variables | |||
EDUEXPE | Continuous, education expenditure | Birra | |
FOaNFEXPE | Continuous, food and non-food expenditure | Birr | |
HEALEXPE | Health expenditure | Birr | |
CALINTAKE | Continuous, calorie per day per AE | Cal | |
AAILS | Continuous, average annual income from livestock sale | Birr | |
AAIMP | Continuous, average annual income from milk production | Birr | |
AAICP | Continuous, average annual income from crop production | Birr | |
AAFW/CP | Continuous, average annual income from fuel wood/charcoal production | Birr | |
OFFFARMIN | Continuous, average annual income from off-farm activities | Birr | |
Explanatory variables | Hypothesis | ||
AGEHH | Continuous, age of household head | Number of years | (+) |
EDUHH | Dummy, education of household head | 1 if illiterate, 0 otherwise | (+) |
TOTHH | Continuous, family size | Number of household members | (−) |
TOTALAND | Continuous, landholding size | Ha | (−) |
IRRGTN | Dummy for access to irrigation | 1 if has access to irrigation, 0 if not | (+/−) |
SEXHH | Dummy for sex of household head | 1 if male, 0 otherwise | (+) |
DEPENRATIO | Continuous, dependency ratio | Ratio | (−) |
TLU | Continuous, livestock-holding size | Tropical livestock units | (−) |
CREDITACC | Dummy for access to rural credit service | 1 if access to credit service, 0 if not | (+/−) |
FARMEXPHH | Continuous | Number of years | (−) |
SAFTYNT | Dummy for access to safety net programme | 1 if a household head is engaged in safety net programme, 0 if not | (+) |
DRTEF | Dummy for effect of drought | 1 if a household’s income from livestock and crop production decreases when compared to the normal year and 0 if it remains the same | (+/−) |
DISROAD | Continuous, distance from main road | Km | (−) |