Designing strategies to introduce new HIV prevention technologies requires balancing equitable access with sustainable distribution, particularly in resource constrained settings with high HIV prevalence. This paper explores how knowledge of preference heterogeneity can guide the equitable targeting of HIV prevention products using differentiated advertising and product placement to balance increased access with sustainability. A discrete choice experiment elicited 1016 women's preferences for distribution of HIV prevention products in South Africa. Qualitative research guided the experimental design which considered distribution outlet, collection method, advertising message, and price. A range of choice models, including random parameters logit, latent class and latent class random parameters logit models, were compared for fit. A latent class model showed the best fit and distinguished two classes of women: Class 1 were significantly more likely to be cohabiting and unemployed, who preferred products advertised for HIV prevention distributed through clinics and were highly price sensitive. Class 2 significantly preferred distribution through pharmacies and advertising around women's empowerment, while price was not a key factor. This analysis suggests that equity in access to new products could be advanced through exploiting preference heterogeneity between groups. The identified groups can be then used to design social marketing differentiated distribution strategies. Distributing free products promoted for HIV prevention could discourage ‘leakage’ of highly subsidised products to women with some capacity to pay, while priced products marketed for women's empowerment through pharmacies could encourage cost recovery with minimal reductions in coverage among employed women.
|Number of pages||10|
|Journal||Journal of Choice Modelling|
|Early online date||27 Aug 2021|
|Publication status||Published - Dec 2021|
Bibliographical noteThis is an open access article under the CC BY license.
FunderThe collection of the data used in this study was funded by the Microbicide Development Programme (MDP) . MDP was a partnership of African UK and Spanish academic/government institutions and commercial organisations. MDP was funded by the British Department for International Development (DfID) and the UK Medical Research Council . The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
- Discrete choice experiments
- Latent class analysis
- Social marketing
- South Africa
ASJC Scopus subject areas
- Modelling and Simulation
- Statistics, Probability and Uncertainty