Working Paper: NBER ID: w15517
Authors: Till Brnighausen; David E. Bloom; Salal Humair
Abstract: Despite recent international efforts to increase antiretroviral treatment (ART) coverage, it is estimated that more than 5 million people who need ART in developing countries do not receive such treatment. Shortages of human resources to treat HIV/AIDS (HRHA) are one of the main constraints to scaling up ART. We develop a discrete-time Markovian model to project the numbers of HRHA required to achieve universal ART coverage, taking into account the positive feedback from HRHA numbers to future HRHA need. Feedback occurs because ART is effective in prolonging the lives of HIV-positive people who need treatment, so that an increase in the number of people receiving treatment leads to an increase in the number of people needing it in future periods. We investigate the steady-state behavior of our model and apply it to different regions in the developing world. We find that taking into account the feedback from the current supply of HRHA to the future HRHA need substantially increases the projected numbers of HRHA required to achieve universal ART coverage. We discuss the policy implications of our model.
Keywords: Health Workers; Antiretroviral Treatment; HIV/AIDS; Universal Coverage
JEL Codes: I10; I11; I18; J20; J21
Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.
| Cause | Effect |
|---|---|
| current HRHA supply (R31) | future HRHA needs (R28) |
| increase in HRHA (R50) | higher number of individuals receiving ART (I14) |
| higher number of individuals receiving ART (I14) | future HRHA needs (R28) |
| current HRHA supply (R31) | higher number of individuals receiving ART (I14) |