Economic Incentives in HIV Prevention and Treatment

Economic incentives have emerged as a pivotal component of comprehensive HIV strategies, leveraging financial and behavioural economic tools to tackle barriers across the prevention-to-care continuum. Conditional cash transfers have been used to promote safer sexual practices, enhance uptake of HIV testing and pre-exposure prophylaxis (PrEP), and improve retention in antiretroviral therapy programmes among vulnerable populations. Micro-incentives, including vouchers or lottery-based rewards, address opportunity costs and behavioural biases, while demand creation tactics integrate incentives with counselling, mobilisation and digital engagement to widen reach. Discrete choice and stated preference experiments refine programme design by aligning incentive attributes with individual priorities, notably among adolescents, transgender adults and low-income communities. Evidence indicates that well-targeted incentives can reduce new infections, increase viral suppression rates and support sustainable engagement, with effects influenced by scale, conditionality and social network dynamics. Ongoing work emphasises tailoring incentive models to local contexts, integrating incentives with broader social protection and ensuring long-term effectiveness beyond the incentive period.

Research from Nature Portfolio

Analyses of a large conditional cash transfer programme in Brazil have demonstrated substantial reductions in AIDS incidence, mortality and case-fatality rates among the lowest-income segments, with benefits strongest in women and adolescents. Micro-level evaluation revealed that the impact diminishes gradually across higher income strata, underscoring the need for equity-focused targeting. A stated preference study among transgender and nonbinary adults identified a strong preference for integrated gender-affirming care and long-acting injectable PrEP regimens spanning twelve months. Findings highlight the value of co-prescribing hormone therapy and optimising injection settings to maximise uptake. These investigations exemplify the application of advanced experimental and observational methods to refine incentive structures for diverse demographic groups.

Economic Incentives in HIV Prevention and Treatment publication trend

The graph below shows the total number of articles in economic incentives in hiv prevention and treatment across all publications each year (not limited to Nature Index journals).

Technical terms

Conditional cash transfer: Financial aid provided only when recipients meet predefined health-related behaviours, such as clinic attendance or testing.

Micro-incentive: Small-value reward or voucher offered to offset immediate costs or motivate specific health actions.

Pre-exposure prophylaxis (PrEP): Antiretroviral medication taken by HIV-negative individuals to prevent acquisition of the virus.

Discrete choice experiment: Quantitative method that elicits preferences by asking participants to choose among hypothetical scenarios varying in attributes.

Demand creation: Set of strategies, including incentives and mobilisation, designed to increase client demand for health services.

References

1. Income determines the impact of cash transfers on HIV/AIDS: cohort study of 22.7 million Brazilians. Nature Communications (2024).
2. Using stated preference methods to design gender-affirming long-acting PrEP programs for transgender and nonbinary adults. Scientific Reports (2024).
3. Demand creation for HIV testing services: A systematic review and meta-analysis. PLOS Medicine (2023).
4. A 5-Year Review of the Impact of Lottery Incentives on HIV-Related Services. Current HIV/AIDS Reports (2024).
5. Impact of family networks on uptake of health interventions: evidence from a community‐randomized control trial aimed at increasing HIV testing in South Africa. Journal of the International AIDS Society (2023).