Table 4.

Health efficiency DEA models

Models	DEA model	Number of variables	Variable description
Health model 1	CRS	2	Total health expenditure and infant mortality rate
Health model 1	CRS	2	Total health staff and infant mortality rate
Health model 1	CRS	3	Total health expenditure, total health staff and infant mortality rate
Health model 1	VRS	2	Total health expenditure and infant mortality rate
Health model 1	VRS	2	Total health staff and infant mortality rate
Health model 1	VRS	3	Total health expenditure, total health staff and infant mortality rate

CRS constant returns to scale and VRS = Variable returns to scale