“…We can use the WTP demand curve to predict the likely variations in the rates of intervention take-up to different levels of charge and, based on the costs of provision, thereafter estimate the required degree of public subsidy to ensure prespecified minimum take-up levels. Much of WTP analysis in developing countries appears to be undertaken specifically to inform price-setting, for example, studies of reproductive health care programmes (Foreit and Foreit, 2003), community-based insurance (Dong et al, 2003a), anti-malarial mosquito nets (Onwujekwe, Hanson and Fox-Rushby, 2003) and the primary health care system (Mataria et al, 2004).…”