Headcount ratio: Share of the population spending Ï„% or more of household resources on OOP payments for health | |||
\( \frac{\sum_h{m}_h{w}_h1\left( OOP\_{share}_h\ge \tau \right)}{\sum_h{m}_h{w}_h} \) | |||
h denotes a household | |||
mh denotes the number of members of household h | |||
wh denotes the sampling weight of household h | |||
1() is an indicator function which is equal to 1 if the condition is satisfied and 0 otherwise | |||
Ï„ denotes a catastrophic threshold | |||
Approach | Budget share | Capacity-to-pay | |
Method | Total expenditure | Non-food expenditure | Non-subsistence expenditure |
OOP share | \( \frac{oop}{\mathit{\exp}} \) | \( \frac{oop}{\mathit{\exp}- food} \) | \( \frac{oop}{\mathit{\exp}- se} \) |
 | oop=OOP health payments |  |  |
exp=total expenditure | food=food expenditure | se=subsistence expenditure |