This paper studies the mechanism for the equity of payments for using the Colombian health system, defined as the possibility of consuming services when the need arises, regardless of the individual’s resources. The incentives produced by the payment system are studied, as well as a particular case of a homogeneous population. Health services are grouped together according to type of risk, and the variations in service consumption are determined as a function of income. If the mechanism is equitable, the frequency of service use in different socioeconomic levels should be the same for pathologies and treatments with high risk and vulnerability.
