Abstract
A contingent valuation survey of Thai adults revealed that private demand for a hypothetical AIDS vaccine that is safe, has
no side effects, and lasts 10 years, rises with income, the lifetime risk of HIV infection and vaccine efficacy, and declines with
vaccine price and respondent’s age. Demand for both high (95%) and low (50%) efficacy AIDS vaccines is substantial. Nearly
80% of adults would agree to be vaccinated with a free vaccine. Government will have an important role to ensure that those
at highest risk of HIV infection with low incomes have access to the vaccine and to reinforce other safe preventive behavior to
prevent reductions in condom use.
© 2004 World Bank. Published by Elsevier Ireland Ltd. All rights reserved